Comments on: Type O Negative Blood

By: Sarah

Sarah — Wed, 25 Jan 2012 22:56:50 +0000

So I am o- and my boyfriend is o+ and I have been told that I couldn’t have children with him. He is the love of my life and I don’t know what to think about what I have been told. Hope it’s not that we can’t have children together, just is a little harder then others. Advice? Should I get the Rh shot before we try to concieve?

By: Mary

Mary — Thu, 29 Dec 2011 01:06:05 +0000

So here’s one for you mom’s and medical people out there; my middle daughter, child #3 was born O+ but when she was pregnant with her birst baby she fliped and became O- and now that she is preganat again she is O+ the Dr’s say she is double O negative or was it double –O has anyone out there ever had that one come up? email me at marymduff2005@yahoo.com

By: sky

sky — Wed, 07 Dec 2011 01:30:21 +0000

I am only nine. So in my fifth grade class we had to study a subject of science I studied blood type o negetive. I studied it and by a weird affect my mom told me I was it. I told my health teacher i dont need to learn about hiv. I am curious in it cause oddly no one in my family had it. This is interesting. I shall use it for my report.

By: Bayley Riddle

Bayley Riddle — Tue, 22 Nov 2011 16:18:41 +0000

hey this is something i never knew about my mom blood type.i am ten years old but im preety facinated.My mom was talking about her getting shots during her pregnencies while i was reading and she said that if she didnt take the shots she would get sick.

By: Jill

Jill — Thu, 22 Sep 2011 12:33:43 +0000

Our mom was Rh- it comes from both sides of the family. Two +’s can have a – child. the genes are recessed from both sides of the family.
Iam the only child from our moms 2 marriages and 7 children that test positive for rh- although my sibs or their children can have a rh- child because all of them have the reccesed gene.

My first born is + and I had to have the shot in the butt after I gave birth.
I had one miscarriage and a dnc and a second full term pregnancy and had to have the shot after each.

By: Michael

Michael — Thu, 11 Aug 2011 06:35:28 +0000

Just bringing this back to the year 2011. I really enjoyed this thread. Hilarious & learned something.. o-

By: Suzy

Suzy — Sat, 23 Jul 2011 13:01:15 +0000

Sam, my mum asked the red cross how I could be O negative blood group as my mum is AB+ an dad is not O negative.

Red Cross Blood Bank told mum it is grandparents blood group that I am O negative in this case.

I am definitely my dad’s as I look exactly like him and all family.

Hope this helps answer your question.

By: Sam

Sam — Fri, 08 Jul 2011 01:24:53 +0000

Here is an interesting fact I learned. I recently donated blood the the American Red Cross. They asked me what my blood type was and I said O + because both of my parents and sisters are. A few weeks later I get a card in the mail telling me I am O-. I asked my parents if they were sure of being O+ and they said yes. So I call the American Red Cross, and asked them to double check. They said they always do and that I am indeed an O -. Someone please tell me how I am an O- when both parents are an O +? They both had RH factors of +

By: Casey

Casey — Tue, 14 Jun 2011 23:16:39 +0000

I’m 25 weeks pregnant and just the other day they told me at the doctor I need the rhogam shot. I’m type o negative, but they didn’t even bother testing my boyfriend (the father) just because I’m negative and they probably don’t trust my word on paternity because we’re not married. I’m dreading this!

By: Biyo

Biyo — Sat, 02 Apr 2011 02:01:24 +0000

To Judy from April 8, 2009: just wondering if you don’t have that backwards, i.e., My reasoning is that, if your dad ‘s type o-, then being a “universal donor” blood type, this should have not triggered a reaction from his mother regardless of her blood type, unless of course, there were other circumstances? Perhaps someone can clarify. Thanks. Great website!

By: Biyo

Biyo — Sat, 02 Apr 2011 01:45:50 +0000

Sorry to hear that, Christy. I would suggest you get the shot before your next pregnancy and during as directed by your ob/gyn. A miscarriage implies your body has developed antibodies against rh + (D), and would likely react to a pregnancy with similar factor in the future.

By: christy

christy — Tue, 22 Mar 2011 23:02:04 +0000

pls what happens when you are o-,and you have had 2 miscarriages, and you are yet to receive the shots?

By: Jamie

Jamie — Tue, 15 Mar 2011 20:24:02 +0000

i am 0- also and i have had 4 kids my husband is a+ and i am fine they give me a shot called rhogam around 20 weeks into being prego then they give you another after you have the baby if the baby is + blood type the rhogam stops the + blood from entering the – blood if you dont get the shot the blood can mix and that is what the call RH sensitized and the – blood will fight the + blood type and that can end up killing the baby or the baby can have other mental prob. I just want you to know that i am fine and have 2 kids that are a+ and 2 kids that are 0- just get the shot and every thing is fine you can have as many kids as you would like

By: oneg

oneg — Thu, 04 Nov 2010 21:00:49 +0000

Samantha- If you and your husband are both O negative then it’s impossible for your child to be A+. I know this sounds extreme but I wonder if there was a mix-up at the hospital. These things happen sometimes. Good luck!

By: Cherie

Cherie — Tue, 26 Oct 2010 08:53:22 +0000

I’m confused. Both my parents are O positive, my siblings O positive and I am O negative. I have had 3 pregnacys, which were all very difficult, labor at 5 months, bed rest and medication to stop delivery, induced at 8 months, but I was never made aware of any shots I needed. My childrens father is O positive. Could this be why I had such hard pregnacys and deliveries as well. And could I really be O negative when my entire family is O positive and be related to them? I do not understand all of this and I do not understand why so many woman had to get shots when they were O negative and pregnant, I was never made aware it was an issue.

By: Samantha

Samantha — Thu, 19 Aug 2010 03:40:57 +0000

Guess what guys! Me and my husband are both O- and my little girl came out A+ so two O- can make a + and yes I have to get the shot when I was pregnant the ro gam or what ever it’s called. My husbands mom Is A+

By: mihow

mihow — Mon, 19 Jul 2010 20:30:25 +0000

Victoria: No. It’s been a while since I read up on this, but no. I think it’s if YOU have the O- that’s when there’s a problem. Might google it, tho. If I’m wrong, I’ll post again.

By: Victoria

Victoria — Mon, 19 Jul 2010 18:21:51 +0000

I am O+ and my husband is O- and I am pregnant. Is there going to be any risk at all for me or the baby?

By: nj

nj — Wed, 09 Jun 2010 09:47:28 +0000

hi
i have blood group B+ve and my husband’s is O-ve.
is there any problem in conceiving as i already have one abortion..

By: Julie

Julie — Fri, 30 Apr 2010 11:57:48 +0000

I’m O- and hubby is O+ and we have five children. I had the Rhogam shot with a couple of my kiddos but it really wasn’t a big deal. Just makes me thankful for modern medicine, because had I lived a century ago, I’d probably not have experienced motherhood. ~ cheers

By: Debbie

Debbie — Sun, 25 Apr 2010 00:47:04 +0000

I’m O negative and wondered if my miscarriage for second child in first trimester could be caused by not having shot early enough? I keep hearing that the shot is given in the 28th week. Is that soon enough?

By: Kelly

Kelly — Sun, 11 Apr 2010 04:45:21 +0000

I am o- and my husband is o+ but I only had to have 1 rhogam shot right after my son’s delivery so I’m not sure why some women had to have several shots throughout their pregnancy. My son was a healthy 11 pound baby and 23 years later is still very healthy!

By: Rachel

Rachel — Wed, 31 Mar 2010 19:05:33 +0000

Ahh, I have O negative blood too! I kinda was creeped out, my dad is A negative and my mom is O positive. And somehow I ended up with O-. Hmmm. The only thing that worries me is if I marry someone with an incompatible blood type and I have to get a shot any time I want to have a kid. :/

By: andrea

andrea — Wed, 03 Mar 2010 14:40:31 +0000

i am b- , hubby a+. my first born(daughter )was a-, no issue. second born(son) was a+…issue. i had the shots with daughter at 28 week, not at delivery since she was -. with son, had shot at 28 weeks, had extremely severe allergic reaction all over my body starting at 34 weeks, got so bad i had to be induced at 38 weeks after taking oral steroids. i believe as does my doc this is because i was negative and baby positive. i had the rh shot right after he was born too. an hour after delivery my whole rash and hives …gone! any future positive baby i’m not sure what will happen, but i had the shot twice so the docs say all would well. but, who knows, the rash i had only aflicts 1% of pregnant women with negative blood types (oddly enough).

By: Lynne

Lynne — Wed, 24 Feb 2010 03:14:11 +0000

My older sister was born in 1948 and after she was born, my mom’s dr told her not to have anymore children because my mom was O- and my dad was A+.

My mom tried not to get pregnant again, but she accidentally did in the late 1950′s, and I was born.

Her dr told her not to get her hopes up because so many Rh disease babies were miscarried or stillborn, or had mental retardation.

However, I was born 100% healthy, and I’m A+.

Knowing all of this gives me the feeling that there is a reason why I lived, and that my life has a special purpose (if only I can figure out what it is!)

By: Gaybrielle Towner

Gaybrielle Towner — Tue, 23 Feb 2010 23:23:41 +0000

Sorry, i was wrong my father is o-positive! my uncle and grandmother are the only o-negative in my family, my dad constanly picks on me that he is not my dad, my uncle is because we are both 0-negative…now it is starting to get to me, and I am trying to do my own research, which is just making it all confusing if anyone has the time please explain all this thanks!

By: Gaybrielle Towner

Gaybrielle Towner — Tue, 23 Feb 2010 23:17:42 +0000

I found out I was o-negative when I got pregnant, which I mis-carried, my doctor on the second pregnancy said I had no antiboties, which this did not cause the miscarrage, so I find out now the only two people in my family with o-negative blood are my grandmother and uncle. My father is o-negative. With my son Garrett I took the shots through my 28 week and so on, what I want to know is how can my parents be positive and I am negative? What risk do I have having a negative blood type? forgive me this is all new too me as well! I need someone to explain all of it to me, I dont remember learning about any of this..please help!

By: Essie Davis

Essie Davis — Sat, 13 Feb 2010 17:38:18 +0000

What blood group would a child possibly have if both parents have 0 negative blood types?

By: Stacey

Stacey — Thu, 21 Jan 2010 17:54:10 +0000

For those interested in how genetics of this work:

Everyone carries two copies of each gene (one from your mother and one from your father). Depending on which gene it is there is usually a dominant gene and a recessive gene. If you have a copy of each (meaning you are heterozygous) the dominant gene will prevail and that is what your trait will be. If you have two dominant copies that will be your trait. If you have two recessive copies then you will have the less common recessive trait. Therefore, those people with the dominant trait can be carriers of the recessive trait. This is how it works with the rh factor.

I am A- and my husband O+, both kids are O-. This means my husband is heterozygous for RH factor, he carries both the + and – gene and that is why our kids are -. I however have to be homozygous or I carry both – genes because – is recessive and + is dominant. Therefore, two + can make a – (because you can be + and carry a – gene) but two – cannot make a +.

Hope this helps, sorry I was late to the party.

Terry, with the info you have, I don’t think your son could have fathered the o+ child.

christine hummel, yes you could have an A- child if your husband carries the recessive – gene.

By: Jamie

Jamie — Wed, 06 Jan 2010 08:00:40 +0000

O – blood also having a baby with A+ father (lucky guy) assuming baby will be O+!! Sorry about the guy needing a kidney it’s hard to find