2 years a nothing yet !

So me and my husband have been ttc for 2 years now.. Nothing at all.. My period is very weird I'll get it and a year will pass and I still won't have it. We went to my doctor and he put me on bc BUT it made me very moody according to my husband lol, so I stopped and started taking vitamins for 3 months nothing we both are feeling very discouraged. He's almost 30 in a couple of years and we want 4 kids so we are trying to start now. What are some other things we could try for me to get my period and ovulate?