I am 25 years old. We are planning for a baby. Last period I got on 7th jan, so we had intercourse continuously for 4 days 20, 21, 22, 23. On 25th there was a mild pain in my lower abdomen, which continued on 26th as well. It felt as muscles in my lower abdomen are stretching. Then next day it disappeared. Then on 28th I had mild back pain. Suddenly my heart starts beating fast and then back to normal in few minutes. On 31st jan when we had intercourse I spotted a little blood. Wanted to ask are these symptoms of pregnancy? Should I consult a doctor.