My gf and I had unprotective sex after 9 days of her period. She took a i-pill within 18hours after we had sex. On 6th day she had bleeding for 3 days and it stopped. As my gf used to have period on 1st of every month. But she had little amount of bleeding on 5th of May just for 2 days and bleeding stopped. Is this is because she is pregnant? Please doctor help me with this. Is she correct on her menstural cycle?