my friend and his wife are expecting a baby at the moment (after a previous loss), and he wants to know his blood group to find out if she needs Anti-D. He's just been told he will have to go private to get his blood group tested, as it's not considered a medical issue by the NHS. The home-tests he's used are inconclusive, so he isn't trying them again. How do you find out your blood group without actually being pregnant/giving blood? (he can't give blood for various reasons)
I gave blood when I still could (my work involves blood-borne pathogens so I can't now), so that's how I found out mine - and as I'm O+, didn't need to know my DH's.