Pregnancy after Ectopic ?

I found out yesterday that I am approximately 5 weeks pregnant. I havnt had a period since my eptopic 7 weeks ago and the removal of my left fallopian tube due to eruption. The EPU won't scan me until 6 weeks even with my previos history. I have started with some bleeding today and wondered what my chances are with this pregnancy progressing? I also suffered a miscarriage last year at 10w3d.