hi dear. I will suggest you the best possible treatment options. First of all do not panic. You can get baseline USG done to know about your uterus and ovaries. You need to rule out PCOS as a cause for your irregular periods. Secondly, HSG- hysterosalpingography, an x ray test to know about the patency of your fallopian tubes. And your partner s semen analysis, to know about the quality and quantity of the sperms. You can use ovulation induction medicines and get follicle study done from day 10 of the cycle,to know about the day of egg formation. You can plan unprotected sex activity on and around the day of ovulation or can plan IUI - Intrauterine insemination on that day. I will suggest you to use natural progesterone pills,instead of primolut, for 10 days after ovulation. You can very well start planning for pregnancy,as you have stopped using contraceptive injection. please start with Folic acid and vitamin B 12 supplements, this helps to prevent various complications during pregnancy and delivery. I hope this answer helps you. thanks Dr. Purushottam Neurgankar