Early bleeding

Hi all i had a positive test Monday and an internal scan Tues - i have been bleeding lightly since then (pinkish and watery) on and off today it's a bit more red - a digital test showed 1-2 weeks on wed which was consistent with what they couldn't see on the scan! Has anyone had bleeding like this and gone on to have a healthy pregnancy it's getting me so stressed which i know won't be helping :( x