I had my period from 25 Nov to 1st of Dec.i had protected sex with my bf on 30th.my bleeding stopped just the day before....and there was no bleeding on the day we had sex and afterwards only very slight bleeding occured on 1st...my periods generally last a week....so i thought everything was normal but today,6th of december i wake up to find that my panty is wet.i go into the washroom and check that i have been bleeding badly overnight....dark red and smelly....like it is when i m on my periods.i m afraid could i be pregnant ?i also took one contraceptive pill within 3-4 hours of having sex just to be extra careful...pls resolve my confusion