I am 4 or 5 DPO and I'm having slight cramps/dull aches in my pelvis. I've had them for 3 days now. Boyfriend and I BD during fertile window quite a few times. I feel like my mind is playing tricks on me just to disappoint me when AF is supposed to come (9/8). I've read that implantation normally happens 6-12DPO, so is there any other reason I would be feeling like this? I don't normally cramp at all for ovulation or AF so it's different for me..😕