Any natural ways to boost fertility or at least regulate my period?

Please help! I have been ttc for over five years. I have a very messed up cycle. I went from 16-18 without a period then I started to get them every other month, then I had a test done on my tubes and found out that one of my tubes are closed, and the other is slightly open but after that I had my periods strong and every month for a year. Now it is slowly going away and this month I had no period so far, and I'm a couple weeks late but I had two negative tests and no pregnancy symptoms. We are so ready to have our first child, but we do not want to take prescription medication. Is there anything anyone has taken over the counter that has boosted fertility or has induced periods? I eat very well, and take care of myself. I just can't seem to figure it out.