I have had 4 shots now. Afrer my 2 shot my whole periods quit but after my 3 shot I started to get very bad pain in lower belly n then after my 4 shot about a week after I started my period n not quit its been over 2 months it gos from light to heavy with bad pains I been to er they dont say much about it just gives me meds for pain. Is this cause if shot normal or is it a side a affected as I took pills about 15 years ago n they did same thing. Its get so bad I cant carry my baby around which he just truned one