Thanks for the responses. I did a pregnancy test and it came back negative. I've got some light pink bleeding at the moment so i'll see if it develops into a period.
I haven't had my 6 week check up as i have a pap smear coming up in August and hate having down there prodded by drs too often. So i thought i'd wait til then and have it checked then.

Great! (sarcasm) Means i have to wear pantyliners all the time! i hate them.