Hello, You are trying for a baby so having unprotected sex. last month you saw blood for about a week (when you wiped), this month also you noted the same but only for 3 days. You didn t have clear-cut menstruation as you regularly had. Cervix and vagina becomes sensitive in early stages of pregnancy. Light bleeding after sex is due to a normal increase in the superficial veins and capillaries in the cervix and vaginal area. Its normal. No worries. Vaginal bleeding, especially in early pregnancy can be be a sign of implantation. You are suggested to get clinically examined by a Gynae. As bleeding in early pregnancy can also be a symptom of miscarriage. Conversely, if you experience heavy bleeding it may be indicative of an ectopic pregnancy. Get all the tests and investigations that are ordered by your treating OBGYN done to detect the cause of bleeding so that you can be accordingly managed. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician