Anti D injection needed?

[Workalldayworkallnight]

Hi, I’m here again just to ask another question.
I had a letter from the hospital today that I’m B negative so I’ll need the Anti D injection just incase baby is a positive blood type.
We found out today too that my partner has a negative blood type he’s A-, I’ve asked my midwife then what will happen, she said she’s not sure what that means if the baby will have negative blood too. So I’ve looked it up and I’ve seen some places say that baby will only have negative blood because both parents are negative but I’ve seen sites saying that the father or mother could carry a positive gene in the blood such as A-+ so baby might actually be positive because positive always beats the negative. But on my letter it just says B- and his card says A- we don’t have A — or B— or even A-+ and B-+ so I don’t know if I carry a positive gene and my partner doesn’t either! And in wales they don’t offer the blood test or your blood to see what baby’s blood type is which makes so much sense so I don’t know why they don’t because they do in England, but if I still have the Anti D injection at 28 weeks and baby is negative will that harm the baby having this injection?
Sorry that’s a lot just want some insight and help from someone that has been through this! Thanks :)

Baby will be negative as far as I'm aware if both you and the Dad are.

But no, the injection won't harm the baby at all.

I wasn't aware there was a - +. As far as I've always seen, it's one or the other

I'm b negative, had one at 13 weeks because I was bleeding, the normal one at 28 weeks and then they tested my daughters blood when born to see if it was positive and if I'd need another. She was negative so I didnt need another. No harm to baby or myself at all. Just stops your body creating antibodies to fight a positive baby and causing potential problems in future pregnancy x

They know what to look and test for so I wouldn't worry

I'm A- and dp is A- aswell
We were told we didnt need jab.

Honestly it’s not a big deal, you’ll get the injections when needed and at birth baby’s blood will be tested. If it’s positive you’ll have anti-d again at birth. If it’s negative you won’t. Millions of women have the anti-d injections. My DH doesn’t even know his blood group (he’s never been unwell or given blood) so I got the anti-d and nothing else was ever an issue.

The injection won't harm your baby. A lot of people do not know their blood type so it is given as precaution. many people have it and their babies are born negative. If the injection was dangerous, it wouldn't be offered.

I’m O- my husband is also O- so I didn’t need to get the anti d injection.

Wiggle your fingers a little its a thick injection it seems to help it not hurt as much ive had.....almost 10? Injections of anti d I was told after I had my daughter that I wouldn't need any for future pregnancies with child number 2 they told me this was my first pregnancy when I pointed out it wasn't they said it didn't matter and injected me anyway with number three they told me they had changed policy and every pregnancy had it if there mom was negative

Thanks everyone for the help, I was just wondering as my anxiety while I’ve been pregnant has been through the roof, so I’m just so afraid or anything and everything harming the baby! So thanks for all the comments! I’ll talk to the hospital as the midwife has told me too before I’m due the injection to say my partners blood type is negative too!
I wish they offered the blood test to see baby’s blood type in Wales would make the world of sense too, to see if you need the injection or not!
@SnooperTrooper12345 nor me! Never heard of it before today haha!
Thanks again!

@SnooperTrooper12345 she means the genes not the actual blood type.

Someone could have a gene of A+- but their blood type will be A+ as the positive is the dominant trait. But if they reproduced with someone who also had A+- or A they could have kids who are A+ or A- blood type. But two people who are both negative blood will both have A gene so not possible to have a positive child.

(The letter could be A, B, O or AB just using A for this example as easier).

I am A-, my partner is O+ however my trust took a blood test from me at 16 weeks and were able to tell from that what blood group the baby was (he’s a negative but they don’t know what letter) meaning that I don’t need the injection! I believe this isn’t offered at every trust though but worth checking.

@Boho7 and @Linnet that’s handy to know! And it’s handy too that your partner is exactly the same as you! But I’m B- and he’s A- does that make a difference? That I’m B and he’s A? Sorry for the questions haha! I will be speaking to be hospital too just like insight from people that have been through it too!

[quote Bells3032]@SnooperTrooper12345 she means the genes not the actual blood type.

Someone could have a gene of A+- but their blood type will be A+ as the positive is the dominant trait. But if they reproduced with someone who also had A+- or A they could have kids who are A+ or A- blood type. But two people who are both negative blood will both have A gene so not possible to have a positive child.

(The letter could be A, B, O or AB just using A for this example as easier).[/quote]
Oh I see! I'd never heard of that before! Thank you!

@Bells3032 ahh that’s really interesting thank you for clearing that up! So if we’re both negative (B- and A-) then we can’t physically be carrying a positive gene? So baby will definitely be negative then? You can only carry a negative gene if your positive?

I'm negative, so is my husband and all our children are too. It is impossible for us to produce a positive baby but the doctors still insist on me having the anti-D around 28wk just in case. You can decline it but there's no harm in having it. You have repeat bloods done at the same time anyway.

I’m O- & I’ve no idea what DH is as he’s never been tested for his blood type. I had Anti-D with both my babies and it wasn’t at all painful, I just remember the midwife massaging my bottom after I’d had each one. It’s nothing to worry about, lots of people are given Anti-D.

@Chelyanne ahh brill I didn’t know if you’re both negative you can’t have a positive baby! That’s handy, good to know it doesn’t harm baby in anyway either! Thanks :)

The injection won't harm the baby. I had it as I am A- and my husband thought that he was B- but he wasn't sure. If both of you are rhesus negative then you can't have a positive baby, however medical staff tend to prefer to do the infection as standard as people can misremember and think that the father is negative when he is positive or there can be non-paternity events that the medical staff (bad maybe even the mother of she is sure she knows who the father is ) don't know about. So better safe than sorry. I would be having it just in case your husband has his blood group wrong.

They will test babys blood after birth and tell you their group.
A and B are equal in dominance so you could have an AB- baby which is one of the rarest blood types. One or both of you could carry an O- gene though which would result in an O-, A- or B- baby.

My parents are both A+, I'm A- but I carry both A- & O- genes. I know this because hubby is O- and our kids are a mix of A- & O-. Blood groupings can seem complex but easy once you get your head around how it works.

If you are both rh negative then your baby will also be negative. Rh neg is the recessive gene, meaning that for you to be negative you need 2 copies of the negative gene. If there's a positive one lurking in there then you would be positive yourself. Neither of you have the positive gene to pass on to your baby, it would be impossible for them to be Rh positive.

One of the reasons they lean heavily on having it, is because they can't be sure of who the Father is. I confirmed this with the midwife when I was requested to have it. As I'm O- and my husband is O-, I refused!

@Chelyanne that is really really interesting! That both parents were positive and you’re negative! How come that happened they must have been carrying a negative gene is it? Oh god I need to go back to school because I don’t have a blinking clue about all this! But it’s so handing knowing!

Yes I got both their rh- genes.

You only need one gene to carry the rh+ to present as a rh+ blood group. You need both genes to carry rh- to present as a negative blood group.
There are tables that explain all the genetic combinations and how they present as blood types. There is an extremely rare blood group called Rh-null too, I remember watching a documentary about people with this years ago.

@Chelyanne it’s so interesting on how all this works! Sorry I’m asking again you’ve probably just said this but I’m just dull (bare with me haha) that I can’t carry a positive because my blood group is negative and if either of us did carry at least one positive gene we would come up as positive?
Ahh I’ll have to find that, this is so interesting, I’ve found so many things I didn’t have a blinking clue about before I was pregnant! It’s taught me a lot haha