So I'm 5 MAYBE 6 DPO and my lower belly and back are suddenly really achy and heavy again- just this afternoon. I doubt it's the follicular fluid as that would mean it's really hanging around long after O but I think it's too early for an implantation. What would this be I wonder? Maybe the power of my mind to will symptoms for a non-existent pregnancy into existence? Lol I do have a superb imagination if I do say myself.