What was this movie??

[farinn]

I saw a movie a while back, I am pretty sure it was made between 2000-2010. An actress who is a lookalike for Laura San Giacomo was the lead. She was the wife, husband had been drugging her, she thought she was losing her mind... she may have been pregnant? Turns out husband is in some unknown horrifying group or cult. I keep thinking it was called "the intruders" or the strangers" or the "uninvited"....but no. Please help!