Bristol Palin--So This Pregnancy was Planned and I Don't Regret it

Bristol Palin makes no apparent sense ... now she says her latest out of wedlock baby was planned.

Bristol just posted what looks squarely inconsistent with what she wrote when she announced her pregnancy. She says in her latest blog post, "This pregnancy was actually planned."

Bristol -- who became an abstinence spokesperson and urged women to prevent such pregnancies -- says there's a big difference between her pregnant at 17 and 24.

It's unclear how this was a mistake if it was planned, and the regret that laced her previous sentiments is now gone. She also says she can't wait for baby #2.

The only possible explanation we can think of ... maybe she and her fiancé got pregnant in anticipation of marriage but then they broke up.