I've just found out I'm pregnant but I'm really concerned. A week before my period was due I had sex with my partner and I bled quite a lot - sometimes I bleed a little after sex but this was like a period but only lasted a few hours. Then 2 days before my period was due I started bleeding (I thought it was my period coming early) but then it only lasted 2 days. I took a pregnancy test on the day my period was due as I was feeling sick, weeing a lot and have an achy back (all symptoms I have had before). That was yesterday and I've not bled again but my thoughts are all over the place. Is it likely I will miscarry?