Try not to panic. I had heavy bleeding with my daughter around 10 weeks (like running down my legs heavy) and with this baby, I bled and spotted for 2 weeks between 7 and 9 weeks, some days just light spotting but about 3 of those days it was quite heavy, enough to soak through pads and my clothes. Both times it was coming from my cervix, not my uterus, and baby was absolutely fine. I'm 40+2 now and I never had any more bleeding or anything other than perfectly straightforward pregnancies after that. So it's quite possible it's nothing, particularly when you do have a history of it with your first. Hopefully you'll get good news at the EPU tomorrow. Just be warned though that the scan itself can aggrevate it. My bleeding got worse after the scan, but still all fine and it's no reason not to have it done.