Missed Period/Early Pregnancy Question!!!

AF is officially two days late. I haven't tested yet. On Saturday I did feel as though I was going to start, but since then nothing. Did anyone else feel like they were getting their period but actually miss it and get a BFP? Just curious as to others experience!!! ***SIDE NOTE*** I've had some cramping, but it isn't like AF cramps at all. I can't really explain other than the cramps you get after running or walking awhile, just that pinchy cramp feeling and it's very light.