Irregular Periods and TTC

Zh

Hi ladies, I have been on birth control since I was 16 due to heavy irregular periods - no PCOs. I came off BC some time and my periods would be regular for a while then go all crazy again menstruating for like 20 days! I came off BC last October TTC, all normal till Dec, havent had a period in Jan so far and negative test. Any advice on how to keep track of ovulation and TTC? I have started to use Conceive Plus as well - I just think I'm going to have a hard TTC wotb irregular periods :( any advice would be appreciated ! Thanks 😀