Birth control will regulate you while on it, but then just leaves you with an irregular cycle again when you come off it. It;s not good to on and off birth control, especially when TTC naturally. Sends all kind of mixed messages through your body it doesn't know what to do - bad idea.
go get on the pill, or some form of birthcontrol to regulate your self and the doctors will whin you off to get pregnant. my advice is go talk to a doctor
How long have you been trying? It can take a normal healthy couple at least 1-2 years to conceive naturally, although after a year, you are usually allowed to be referred to a fertility specialist to see if they can help.
Anyway, have you tried using OPKs? (ovulation predictor kits). They help you to determine when you are ovulating - which is extremely important when TTC because as you may know, timing is everything and you need to be having sex leading up to ovulation in order to try and conceive.