My last period was 11th May. We had intercourse when I estimated I was ovulating. Pregnancy test has shown a very feint positive line (period not due for a few days). Today I have a little bit of bloody/mucous discharge only there when I wipe after going to the loo. Otherwise well, wondering if my breasts are a bit tender (but maybe imagining this) and feeling a bit dizzy. I didn't have a bleed with my first pregnancy but did have the dizziness. My period has never come early, if anything it comes a few days after it is due. Does it sound like implantation bleeding? Or something else?