mlohanmajor112310_01_X17.jpgKate Major and Michael Lohan are expecting their first child together, according to a source for TMZ.

The two became involved in late 2009, and while they've had a tumultuous history (she called the cops on him last April when he showed up uninvited at her work), Kate's restraining order against Michael was lifted a few weeks ago.

However, Kate is in her first trimester, so clearly the two were sneaking in visits with one another when it was illegal for them to have any sort of contact!

Michael reportedly has not told Lindsay or any of his other children yet...