recommened fertility help

tuesday i have my second drs appointment with my obgyn, she wanted to confirm my period was indeed irregular, i have had an irregular period since i first got a period. i have been TTC for a year and a half and i don't believe i ovulate often. I've heard about many fertility treaments that are given to people with irregular periods. for those that have an irregular period and got pregnant what do you recommend i ask my dr about?