bleeding in pregnancy is not uncommon, however you are very early on (ie only 1 weeks after your period would be due) and misscarriages are not uncommon either at this stage in pregnancy. I think all you can do is wait and see if the bleeding continues. I'm not entirely sure what they would do at a and e if you went there - apart from make you sit there for hours. If you are having a miscarriage, the bleeding is unlikely to be catastrophic (Being so early on) more like a heavy period, or even a normal period. They can't do a pg test as it wont show anything meaninful, and it's too early to see anything on a scan (even if they had one). If you start bleeding extremely heavily then go but otherwise stay at home