I was told I was gonna miscarry but....

🖤Mommy🖤 • ♥️Son-7/00♥️Daughter-9/04♥️Daughter-11/12♥️👼-9/15♥️Son- 8/16♥️Son- 3/18♥️👼- 4/19♥️👼- 5/19♥️ Son- 2/20♥️

I went in last week for a hcg check check on Tuesday, it was 23, two days later it didn't double. It was 34. Yesterday I had a check again and it was 216. I'm 4+3 today. She said it was low but it was over what it should have been. I don't know what to think right now. I go again tomorrow. Is my level to low? What is everyone else's?