I'm super anxious!!

Kalyn
My fertile window was from December 25th-31st (or 24th to 30th, depending on the app.) I had one instance of EWCM on the 27th and cramping on the 28th & 29th.. I had sex on the 2nd of January at like, 3am. He didn't finish inside me, not even close, and he'd urinated earlier that day. I'd been cramping with sore breasts, but now, suddenly two days away, all of that went away. I'm super nervous! Advice?
Update: I guess I actually had EWCM on the 25th and 27th. Cramps the 28th & 29th!