I went to the ER last night because i was haaving a little bit of mauve-ish colored spotting and having some side pains. Thats the symptoms i had last time and i ended up miscarring at 10 wks. Well they did an ultrasound and found the baby had an heartbeat but they found that i have some kind of tear between implantation and my uterus. What is this? The doc didnt even take the time to explain it to me.

This could be something called Abruptio placenta- a tear developes between the placenta and uterus. It can be serious. You should see your OB immediately.

That could be serious, go to your personal doctor soon!
I hope that everything works out for you!