Hcg levels

Liz

I’m starting to worry …. Im 9 weeks …. I had a little bit of brown discharge the other day so my dr sent me for blood work since i was worrying and I can’t get an sono until tomrorow : my first level was 112,000 on Monday - and wednesdays level was only in the 114,000 range . Everything I read online said my number shouldve double . Does anyone have any experience with this ???