help hcg levels!! ectopic pregnancy?

So Monday I had my beta drawn at 18 today I had my bloods there's only 21 I asked the dr if she thinks chemical pregnancy with it being so early on she's edging more towards an ectopic pregnancy:( I'm at the stage where if it's going to end I want it to hurry up and take action feel like a sitting duck got to wait 48 hours for another blood test and wait till Monday for more bloods !😩