Last period was July 20 looking for cycle buddy

Ashley
My period is expected August 16-22... I have been nursing my 2nd son and have only had 2 cycles since having him, so I have been averaging 32 days not 28... Had sex 2 days before ovulation. Had sore nips during ovulation and a little cramps in my back and moody... Idk what's happening. Pregnancy tests say negative now...