Slow rising Hcg

Nina • TTC babe no. 1. Diagnosed with PCOS in Jan. M/c in June. Now trying acupuncture after several rounds of Clomid.
I got my BFP last Sunday, and had my first Hcg test Monday. My levels have been:
​Monday: 55
​Thursday: 132
​Saturday: 232
​My doc is having me come back on Tuesday for yet another one. She said my levels are still within the normal range, but after Googling the crap out of it I'm worried I'm headed for a miscarriage. Anyone have words of reassurance?