Ovulating? When will it happen again?

Ok, so I found out I was pregnant in January and in the middle of February I miscarried. The baby had stopped growing at 9 weeks and there was no heartbeat. Well I had a d&c 2 days later on the 21st and I had been bleeding since then. I just got my first period about 2 weeks ago. So I had my period and everything was great. I didnt bleed for like a week and a half. Well I thought I would ovulate this week. I bought the ovulation sticks and have been checking everyday. But no luck. Yesterday while I was at the hospital with a friend I got like really bad cramps and then it stopped. So I went to the bathroom and sure enough I had bleed alittle bit. Not alot but not alittle either, so I put a tampon in. Then on our way out I pulled it out and nothing was on it. Well I havent had any blood since then. I dont know what to think? When will I ovulate? Im just antsy to try again but I cant try again til I know there is an egg up there to be feritilzed ya know? Someone every been here? Help. I could really use someone to take me under there wing and help me.My ovulation calender that I spent $60 for online even shows that I should be ovulating.