My girl friend used Nordette as ECP some time in March & April. Last May 1 she had her period which lasted for 5 days. The following day she continue to bleed up to the 15th of May. Then it stopped already. On the 29th we had unprotected sex. To make sure, I ask her to take 4 pills (nordette) almost 1 hour only after we had sex. Then another 6 pills after 12 hours. She is 3 days delayed now based on her ovuation calendar (she is regular by the way). Is still there a chance that she'll get pregnant?