My last intercouse was Nov 11 2017, i thought i was
pregnant because i felt all the symptoms of pregnancy and aside from that i experienced extreme pelvic pain but my period came Dec 1 and ended on Dec 3 and it was heavy and very painful after that I still have the symptoms so i took a pregancy test it came negative, all in all i took 3 pregnancy in different weeks and the latest was today January 4 2018 and i missed my period. I am worried. What is happening to me?