blood rhesus factor changing

[harrysmummy2b]

after id harry on of the midwives spoke to me about me not needing anti d (i was a b neg) but then she said my blood changed from a - to a + has any one had this and will it change back?

 

[Whisper]

|'m no doctor nor scientist but i am sure thats impossible!

 

[harrysmummy2b]

I know that's what I thought but apparently it happened to my mum aswell when she had my brother

 

[Whisper]

I found this link it might be helpful...

https://www.gynob.com/rh.htm