NEED ADVICE PLEASE! ??

Long story short. I Mc July 4th had d&c. AF came Aug 6-11th & then Sept 2-8th. Made my cycles 27 days. It was scheduled to start again Sept 29th but HASN'T! We baby danced Sept 13, 14, & 15th during fertile window. But I've tested 3 times now and all NEGATIVES. I'm lost! I've been craving weird things like crazy, my boobs are sore as hell...my cm is still creamy...WHAT IS HAPPENING?!?