i came off my period 7 days ago, took my pill for 2 days then forgot to take it again, i have now had some redish gooey bleeding (not a lot at all), then used a tampon and some pinkish coloured came out on it but not even enough to fill an 8th of it and no where near what my period is usually. me and my boyfriend have had sex everyday and sometimes more than once.. 

what could this be?