im on the pill but am not very good at takin at the right time every day, usually a few hours different. on friday night at 1 in the morning i had unprotected sex however i also had vomited that night, will this have made my pill, which i take at around 7ish every night ineffective?i was on abpout the 14th pill in my packet and am due for my 7 day break in about a week...if i come on my period in the 7 day break does this mean i am not pregnant?or is there still a possibility??