Good Afternoon. Yesterday was my first day of periods but no blood flow only saw blood spots later my husband has sex with me, we use protection but it got leaked. Iam not sure that leaked substance goes inside me or not. Today my periods blood flow is heavy flow. So is there any chance to get pregnant? Should a take a contraceptive pill for safety. more then 24hrs passed. Please help it's urgent. Let me know do I need to take a pill or not. I don't convince pregnancy for now.