possible miscarriage

so i have been bleeding on and of since the 18th. light now 2 day's ago i have been bleeding heavy so heavy i am filling up a super tampon. i am bleeding out of it and clot's are forming past the tampon i wipe clot's then pull out the tampon and clot's flop out not these little clots but big and long. any one have this or could it be endometriosis.

* One more thing my step daughter kicked me in my back last week and also slammed her body into my belly in an attempt to knock me to the ground. she can be violent when she does not want to go to the wall.

*going to have hubby run to the store to pick up a pregnancy test to see if i had any hormones of pregnancy then i will see if i need to go the the dr. if it come's up positive.