First time mommy

So I’m 21 and a ftm and I’m just scared that I don’t know what to do.. My pain tolerance is pretty high and I never know when to actually call the doctor or if I should go to the hospital. I’m 31 weeks pregnant but my baby is weighing over 5lbs already and measuring to be 35 weeks. I did blood work last week to make sure that I don’t have gestational diabetes but I won’t find out if I have it until tomorrow (hopefully) or this week. Tonight I’ve had a lot of pressure it almost feels like his head could literally just come out. My stomach feels like it’s hardening at times and I’ve been having some light pains on top of my stomach. I’ve been peeing like non stop and every time I have mucus when I wipe. I’m going to call my doctor in the morning to see if my test results are back & tell them how I’m feeling. Is anyone else just scared..? 🙃