I had unprotected intercourse with my partner on 11th may. My periods usually start from 2nd/3rd date of the month. I started having some pregnancy symptoms ( like breasts tenderness, mild stomach ache, food aversion in morning) since 25th and got myself checked on 30th. I also started bleeding on 30th and 31st. Only for 2 days, then it stopped. I got beta hcg checked and transvaginal ultrasound done. Both the tests were negative. Doctor saying there's nothing. But I still have doubts. Because i'm having a dull ache in left side of lower abdomen. Pain in upper chest area and upper back area. What should I do??