Anyone know what this means?

I just got off the phone with Kathy at PPVI (I love her by the way).  She was calling with my progesterone results.  Here is what they have been since my first test...

P+17 - 14. something (I forgot)
Two weeks Later - 15.2
Last Wednesday - 18.9

They aren't great numbers but she said they are about mid-zone 2.  I'm not going to complain too much.

Here's the thing I can't figure out.  At that second blood draw they also tested my CRP levels (c-reactive protein).  I didn't know they would check this but apparently they do because later in pregnancy elevated levels of this can cause preterm labor.  She told me normal levels are from 0.00-2.5.  Well my first level was at 19.5 and last week it was at 24.5.  Way way too high!  She asked me several questions regarding cramping, discharge and such.  She also asked if I have been sick with a cold or something similar.  All to which I answered no.  She said she is going to get with Dr. Hildgers today and see what he thinks.  Hopefully she will be able to call me back today.

Just when I was starting to relax and not worry so much.  I have no clue what to think all of this is.  I'm trying not to read too much into it but Dr. Google is making me crazy.  Has anyone had any experience with this?