Any advice

My husband and I are TTC and I got off my birth control a few days ago. I ended up missing 4 days of birth control last month and my period either hasnt come or is so light that I can barely see it. I have been taking prenatals for 3 weeks now and I have PCOS. I want to know when I'm ovulating and when to try. I want a baby so badly that I cry so much more than I ever have in my life. I guess what I'm asking for is any advice I could get. Please help me.