Low Progesterone Levels :(

Dallas

3 Home Pregnancy Tests and bloodwork done at the DR's. I can finally confirm Im pregnant!!!! I m sceduled to see my Dr. next Thursday the 31th but because of my previous Miscarriage back in May they had me come in to do blood work to check my levels. I just got a call back from the Dr's office and they did confirm im pregnant but they are worried about my Progesterone Levels. (Progesterone is key to creating a perfect environment for the ovaries to harbor the fetus) She said my level is 6.4 and they need to be 10 or higher. Hopfully with this prescription of Crinone my levels will boost up. I go back to get my blood drawn again to recheck my levels this friday the 25th fingers crossed this medicine will help. Has any one Experienced this before? any advice ? trying to not let this stress me out but its definitely making me a little nervous.