Well this is odd...

This is my 3rd cycle ttc and my 2nd cycle using OPKs, I have 30 day cycles and today is CD9 (almost 10 i guess) on CD8 i got an OPK that was super close to being a positive so we dtd last night (and today) and my OPKs today have been WAY fainter, but i noticed today that i have ewcm, increased sex drive, cramping and really sore boobs.

Wtf is going on?! I've never had cramps or sore boobs until the 2ww, is it really possible to O on cd9 on a 30 day cycle?! I was always under the impression that its towards mid cycle, i mean if i O that early then no wonder im not pregnant yet, my "fertile window" would be off by like 6 days...