I need some positivity.

I am 4 weeks and 2 days pregnant today (as ovulation predicts) 4 weeks 6 days based on LMP. My level at the ER was 109 and today, 48 hours later my level was in the 150s. I believe 157? I know this has not doubled and I have been asked to cone back on Sat and Mon. My OB said it could go either way at this point. Someone give me a glimmer of hope. Any positive stories of slow rising hcg? :( I'm feeling down in the dumps.