I'm so scared!!!!!

Sissy
So I just found out that I'm pregnant after have a d&c done Dec 13th. I found out this past Friday. Well my doctor calls me today and says they want me to get blood work done for hcg to make sure it's rising like it should. Once tomorrow then another 48 hours later. She also mentioned that I slightly have a higher chance of miscarry in again due to me just having a miscarriage in dec and loosing my son. I've had 3 miscarriage. One in april one in july and then dec. I don't want to loose this baby. What will help me not to loose it or what can I do if anything. She also got upset with me about taking flintstones vitamins verus prenatals. I told her prenatals been making me sick. She said it doesn't matter figure out a different time a day to take them. I will call you in a prescription for prenatals instead of you buying the ones over the counter. This is very crucial for you for the baby with folic acid and iron. So you need to figure out how to deal with it. I felt like that was a little rude. But whatever to do to try and make this baby healthy and stick I'll just keep getting sick taking prenatals. :-(