Dear Sir/Mam, I had unprotected sex on jul 06( my periods got over on Jul 04)My husband said nothing will happen and I didn't take any pill. Then on 31st Jul, 02 Aug and 6 Aug we did without protection. Till yesterday evening there was no sign of periods so I did home test and it was negative. Yesterday night there were some blood spots and I thought my periods were late. But nothing happened thereafter. I am confused. Kindly help.