Help please TMI....

For 2 days now I have been having cramping around the bottom of my stomach...it's pretty bad! Today I went to the bathroom and there was cloudy stringy mucous. That has happened twice and it hasn't been small amounts. I'm 15 weeks 6 days and idk if this is worthy of a hospital visit. It make me really worried! Background info I had some spotting and cramps at 5 weeks, but was sent home at the hospital. This isn't my first pregnancy, but this has never happened...