I'm - and so was ex, so DS was as well.
This pregnancy, I don't know what most recent ex was, but I opted to get the shot after birth. The way it was explained to me, is that it helps for future pregnancies and afterward in case of blood mixing.
I did have a bleed early on in this pregnancy, and had antibodies show up in a blood draw. They kept a check on it and the next draw they were gone. I'm not sure if it was a false positive or if they just poofed. But I also got my 2nd draw a month later, not 6 months. I don't know if that helps any :/ Sorry!
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