Hi, I am wondering if I did good in trying to conceive on the 10,11,13,14 and 17. One calendar predictor says I am fertile from the 16-22 ovulating on the 21. However another app. says I ovulated on the 15th and was fertile from the 10-18. I started having mild cramps today. My period isn't scheduled till at least the 5th of October. Do you get cramps when ur ovulating or could it be implantation already? I would think its too early for that. :)