Hello. I and my girlfriend had a protected intercourse on 2nd Feb. But I rub her without protection for 5-10 seconds. For safety she took an ipill within 24 hours. She had her withdrawal bleeding on 8th Feb for 4 days. It was mild than her usual bleeding. Her periods were due on 14th Feb. But she has not yet got her periods. Did upt thrice at an interval of 7 says each. Every time it says negative. We are very very tensed. Is she pregnant? Please help.