I missed two pills and had unprotected sex during that time. however, ive had some bleeding since two days after, and am assuming it's a withdrawal bleed. Because I've got my withdrawal bleed, I can't be pregnant can I?
It's probley withdrawal blood. If it were implantation, it wouldn't be so soon after. Just wait to see if you get your period. If your late, take a pregnancy test.
How soon after/when does implantation bleeding take place?