Preterm labor test 24 weeks freaking out


Went for my second anatomy scan today because my princess was uncooperative the first time. For a few days I've been feeling pressure in my vagina and leg pain in one leg. The doctor said round ligament for the leg pain but with the vaginal ultrasound my cervix seemed to be contracting. Told me my cervix was still closed thank god and to come back next week to test for preterm labor test at 24 weeks also advised me to stay off my feet for a week and prescribed me a pregnancy belt. Any advice? Anyone else going through this? My first baby and I'm kind of freaking out!