miscarrige?

I had bleeding for 28 days, the first 10 days it was pinky/ red and was very light,i did a test and it was neg,then the bleeding became like a normal period for a few weeks but then it started to get really bad with lots of blood clots, i also noticed a little bit of water coming out, i thought it was just a little bit of urine cause cause sometimes i have a weak bladder, my doctor sent me to hospital, and they did a scan and seen a water sac with something inside it, but when they did a pregnacy test it was neg,after a internal, the doctor told me that my womb was open and that maybe the reason i was bleeding so heavy was that i was recently pregrant, i had a d+c that same day and have to wait until 17th june for the results and to see my gyno,what do u think? does it sound like a miscarrige even with 2 neg results?