I have never had a regular period. but conceived without having a period a full two years without any birth control . would it be hard to conceive?

Depends: It depends what you mean by irregular periods. If you skip your period months at a time, you likely have anovulatory cycles - nor releasing an egg, which reduces your ability to get pregnant. However, if your periods just vary by a few days every month or by duration, then it may not interfere with getting pregnant. You can buy Ovulation Predictor Kits, which can indicate when you are ovulating