What are the possible blood types of child with an A+ mom and a O- dad?

OK..here we go! :) So your full blood type is one of four. It could be (A+, A+), (A+, A-), (A+, O+) or (A+, O-). Your husband's is (O-, O-) and that's the only choice for him. The choices for your baby's blood type will be (A+, O-), (A-, O-) or (O-, O-). The genotype for your baby will be either A+, A-, or O-.