Decidual bleeding or miscarriage?

I am 6 weeks pregnant (found out a week ago) This is my 3rd pregnancy, my other two ended in healthy deliveries. This morning, after with the hubby (nothing too vigorous!), I spotted a little after I peed, I was a little bit worried, but thought it was due to . I peed again a little later and more bleeding, no big clots, but heavier. I have no bleeding until I pee, even if I walk around, and its as heavy as a period, but without the clots and absolutely no cramping. Went to the walk in, and they gave me a preg test and I was still pregnant (I am skeptical because im sure your hormones still linger for awhile if your miscarrying) I don't kow what to think at this point. I expect a miscarriage to come with alot of pain and cramping which I don't have. I have heavy enough bleeding to think I am miscarrying though, but then I read something on decidual bleeding. I hear it happens in about 30% of women in their 1st trimester and close to there expected period date and had I not been pregnant I would expect my period around now but I also hear It can mimick an actual period. But can it mimick a miscarriage? Is this a miscarriage or decidual bleeding???