Stopped going to appointments?

I've stopped going to my appointments because they've been to hard for me to get to. My boyfriend is in jail for the time being and I'm taking care of my 2 year old son. I've always been able to take him to prenatal appointments and i still am able to for NST tests. The doctor wants me to go to ultrasounds once a week at the hospital but they don't allow children in the hospital due to hospital policy. I know they can't change their policy for anyone but i dont have ANYONE to watch my son. My family lives 1 hour and 45 minutes away from me and just cant afford to come here once a week to help out while i go to doctors appointments. They also work all week and cant afford to miss 1 day a week which i completely understand. I also JUST moved to this area and dont have any friends or people i trust to watch my son during these appointments. The reason they want me to go to an ultrasound is because baby has IUGR and i REALLY wish i could go because every time i go to my OBGYN they pressure me and ask if i have anyone to watch my son because im considered high risk and they say my baby could die. Im 34 weeks tomorrow and every time im able to go to an ultrasound the doctor who is supposed to deliver my baby always says shes growing fine and EVERYTHING looks great. she's just a small baby (6th percentile )My son was "small" too and he came at exactly 40 weeks on his due date and weighed 6 pounds 10oz. The reason i just want to stop going is because I feel like nobody is listening to me and they always say contradicting things. one doctor says shes perfectly healthy just small and another says shes small and could die. Im just confused and stressed out and i have NO HELP at all. i feel like nobody understands what its like to be completely alone in a new place. I do care about my baby but i cant just leave me 2 year old home and tell him i have snacks put out on the stove if he gets hungry lol.