BFN AFTER BFN HELP

It’s been four weeks and a few days since I’ve had unprotected sex & i have NOT been feeling myself lately at all .. bloating, mild stomach cramps, frequent urination, SUPER fatigue, heightened smell, morning sickness , backache, sore breasts, headaches from time to time .. i haven’t had a period it’s been past a month since I’ve gotten my last one.. my CM (cervical mucus) is super thick white and stretches.. everything points to early pregnancy but i can’t seem to get a positive urine test .. before i call this quits is there anything i should do ? Anyone ?..