What the?

Yeah, so, I had a blood test on Monday, January 26th: HCG: 51, progesterone 12. On Wednesday, I had another blood test: HCG: 96, progesterone: 16. I'm kind of freaking out. Just a tad. Just a little in the googling-until-my-fingers-bleed territory.  They told me that they're not worried. But I am (it didn't double in 48 hours). Also, I'm on 40 of the generic Lovenox - last time, with the Kid, I was on 60. This also concerns me. Meanwhile, I felt like I was going to pass out I was so dizzy today. I can't remember that happening before. But I chalk it up to the 1,0000s of progesterone pills I'm on. Righty-o. Trying to stay positive here.