 [ Symptoms ] is it possible to get pregnant if you do not start the new pack of bc pills for a week after your period stops  i took the previous pack on time every time and the placebo pills while on my period there was an issue with the refill for my prescription and i was not able to get it until a week after my period ended not thinking i had unprotected sex twice during that week is there a chance i could have gotten pregnant during that time the day i got the birth control i took it and within ten minutes of taking it i started feeling nauseous this has never happened with the pill before [ Disease ] it is a possibility if i were you i would take a pregnancy test just to make sure then make an appointment with your medical doctor regardless of the results