I got my periods on 23rd june and they ended around 27th of june. I had protected sex with my partner on 2 nd july and protected sex again around 12th or 13th of July. I got my periods today that is 19 th of July but the bleeding is too less and it is dark red in colour which it is same usually but my bleeding is very very less this time. My periods are very irregular as I am obese. This month I got my periods without taking medication as I lost some weight. I am very worried as the blood flow is very less. Could this be a sign of pregnancy. Because I'm very scared. We used protection for sure but I am afraid what if this bleeding is related to pregnancy. ? Please help me