Please answer quick, help beta hCG 12.5?

I have had 2 faint positive pregnancy tests and a beta hCG done today (blood drawn) and my beta was 12.5,(non- preg women should be under 5) but my progesterone is 1.77, which is low so doc said he doesn't THINK I'm pregnant but to come back in two days for more bloodwork. I'm so confused and upset, has anyone ever had this happen? What could it mean?