Opinions please


I came off bc on the 1st Aug. Since ovulating ( which I guess I did because I got the pains in my overt) the pains have not gone away, just got worse and spread to my womb like period pains. I'm incredibly bloated and my womb feels full and heavy and achy. Like a water balloon I suppose and tender to touch. Boobs feel heavy. Not sure when af is due as first cycle off bc but whilst i feel pregnant I cantbe surely as not had a first cycle yet? Tested this morning but negativr. Probably too soon but I'm confused about my body changes. Is it just adjusting to not being on the pill or possible baby?? When should I try again. I keep having to hold my womb, like it's going to fall out!!!! 😳