5 weeks pregnant bleeding and cramping and blood clots the size of golf balls?

Call your ob: did you have a pregnancy test to confirm you are pregnant? did you start seeing an obstetrician? if so, call your ob. this is a serious symptom and sign

Go to ER. : You should go to Er and let them check you out. They will get an ultrasound and see if you have not aborted. It is important.

To ER: You should have an ultrasound and blood tests to see if you are having a miscarriage and to make sure everything looks ok in your uterus and that you aren't anemic. Good luck.