Rhesus negative - what counts as a potential incident?
Hello, I’m rhesus negative and due my anti D in June. My midwife hasn’t really given me much information on it; and in what circumstances I should be concerned.
But I just today got knocked down by a golden retriever dog, not violently, they were just exceedingly excited and came bounding down the hill at me, and barelled into my legs so I fell down. But should this be something I go in for anti-d early? Should I be looking out for anything specific.
I don’t really understand what the potential risk is, or what the anti D does. My only understanding is it’s to stop my blood attacking the babies, but why then do they only give you the anti-d at 28weeks if that’s the case.
Surely our blood is always mixing?!
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Are you a first time mum? X
Hey! I’m also rhesus d negative and due my anti-d in June. As far as I’m aware we only get the anti-d at 28 weeks cause the risk of our blood mixing with the baby’s is highest in the third trimester.
Being rhesus d negative doesn’t affect anything else as far as I know.
Firstly I would contact your midwife to see if you need to have the injection earlier. (I also dont know what force is considered an impact but if you're concerned i would contact them)
It would have no harm on your current baby if your bloods mix, but if your body creates anti bodies towards the other blood type, with your next pregnancy thats where theres risks as your body would want to reject that DNA in your body
The placenta acts like a barrier/filter so when your blood goes through the placenta it filters it for the baby and visa versa when blood is coming back from the baby
Hope you're okay! Xx
You should have had a blood test at the 12 weeks scan which would tell you if the baby is positive or negative (unless the father is also negative). If the baby is positive, there is a chance after 12 weeks usually that the babies blood can travel across the placenta into your bloodstream. This can then make your blood produce antibodies which attack the babies blood - this is called sensitisation.
If you’re worried that there has been a sensitising event, you can get the Anti-D injection within 72 hours of the event so call your midwife to ask about this. Any later than 72 hours and the anti d is unlikely to work at any stage.
Even if sensitisation happens, it’s well monitored and treatable these days. X
I would also say that if it’s relating to trauma/ a fall like the incident you described, i would say more worrying if you’ve noticed any bleeding or spotting but still worth chatting to your midwife just for peace of mind x
I’m not a expert in any way just to be clear haha just a mother to be with my own Rh negative anxiety and have read up on it x
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