Worried about hcg levels

Shafawn • RicanHermosa 3 gorgeous kids and currently ttc after ruptured ectopic

So I went to the doctor Tuesday and had my hcg levels checked, it was at a clinic because my ob couldnt get me in and it was 100. She told me that I needed to come back in 3 days to check again which was yesterday and it was 172, an almost 47% increase in 2 days. She said she would have liked to see it raise atleast 50% and started talking about ectopic pregnancy which really freaked me out!! I mean its literally so close to 50% and my last pregnancy started out slow I just can’t remember how slow. I go back Monday for another blood draw and this weekend is dragging by😣 I’m so nervous and would appreciate if you guys could tell me any stories you have of slow rising hcg with healthy pregnancy🙏🏾