Dear doctor, I'm 20 years old and I have irregular periods so a doctor prescribed me primolut n. I took this medicine for 3 days and after the whole course I got my periods after 3 days after completing the course but it only lasted for 2 days. Before this, I did total 4 pregnancy urine tests at home. Out of the 4 tests, 3 of them came as negative and one came as invalid. So none of the tests were positive. I had protected sex one month ago. Now it seems that my menses has stopped it only lasted for 2 days. I'm worried as I've heard that if you are pregnant there can be bleeding which lasts up to 1-2 days. But I don't plan to be pregnant right now. So I'm confused whether it is really menses or something related to pregnancy. Or this bleeding happened because of primolut n tablets. The test results were also negative. So I'm too much stressed. Am I pregnant or not? Please help me.