bleed

in August I had sex with my boyfriend and threw up the day after effectively getting rid of the pill I had just taken, and I'm slightly worried I'm pregnant, like a few days-week later I had spotting, but since then I have had two bleeds since when I am due my period and they seem normal but I'm not sure if it could be spotting then but heavily? anyway is it possible to be pregnant even though I have bled twice at normal time after?