text: how long do you have to wait to check if you're pregnant? my bf and i are trying to have a baby..help!?   talk to your doctor.  first, s/he will give you this information, and a whole lot more information that you need if you're trying to get pregnant, including dietary information that can improve your chances of conceiving and carrying a child without much inconvenience.  second, these days there are lots of genetic tests that can be performed to ensure that your boyfriend and you are genetically compatible -- that is, unlikely to produce a child with a genetic disease. for some ethnicities this is a crucial step, but it's really something that everyone should do, before you get pregnant.