On apr 4 I had intercourse then I took an ECP on apr 7. Then on pr 9 I had intercourse again. I may be pregnant? Its apr 15 now. Its supposed to be my due to have a menstruation because of the nordette. My doctor in ob-gyne said that I'm infertile on apr 4. But I'm just asking why I'm not bleeding today..how many days will I wait for my bleeding? Please help!!