So nervous.....low hcg?

So I took a pregnancy test on Monday (cd32) It was a very very very faint positive. It was questionable. Husband couldn't see the line, but I could. I was shocked bc my progesterone on cd 21 was only a 5.86. I went in for a progesterone recheck on Monday as well as a beta hcg blood pregnancy test. My beta came back as a 4. They said anything over a 2 is pregnant. My progesterone actually decreased so they put me on a supplement. I had to go back Wedensday for a beta pregnancy hcg recheck to make sure my levels were rising appropriately. Got my result yesterday.. Beta came back as a 10. Have to go back Monday morning for a progesterone recheck and beta recheck. This is nail biting.