Today I found out I was pregnant. I have a 1st degree av block sometimes 2nd but only really when I'm asleep. Will I be okay through my pregnancy?

Please consult ASAP. With your cardiologist, he will need to follow you throughout the pregnancy and can give you his opinion, the cardiologist will need to work closely with your OB and a perinatologist and you may be better served delivering at a university medical center, for example, if you were in my area would refer u to the univ of miaim.