Me and hubby are Ttc baby #2 but my body has really gone out of whack from depo. My last shot was in December of last year. AF came every month on the 21st but for some reason skipped April. After six negative HPT's AF came on the 21st of This month but has last for two weeks and is now about to overlap in my ovulation window. So I bought OPK's for the first time to see if I could still ovulate even still on my period. If they continue to get dark.. Is that a good sign? I haven't got my BFP yet but I can tell the lines are getting darker as I take them and get closer to ovulation