Shanna Moakler: Teen Pregnancy Expert?

Mother of three Shanna Moakler, 32, is not shocked about 16-year-old Jamie Lynn Spears' pregnancy -- and she's got the stats to back her up!

The potentially single mom (who can keep up with her and Travis' roller coaster relationship?) -- blogged on her MySpace today about the preggo teen, asking why anyone was shocked about Britney's sister.

She rambled on with stats about teen pregnancy, abortions and miscarriages ... did you know about one million teens become pregnant each year? When "Crowned" is over, perhaps Shanna should consider a career as a high school Health teacher!