(CNN) President Donald Trump favors exceptions in abortion bans, he tweeted Saturday night.

"As most people know, and for those who would like to know, I am strongly Pro-Life, with the three exceptions - Rape, Incest and protecting the Life of the mother - the same position taken by Ronald Reagan," Trump wrote.

As most people know, and for those who would like to know, I am strongly Pro-Life, with the three exceptions - Rape, Incest and protecting the Life of the mother - the same position taken by Ronald Reagan. We have come very far in the last two years with 105 wonderful new..... — Donald J. Trump (@realDonaldTrump) May 19, 2019

Trump's position is different than one taken by Alabama Republicans, who passed a near-total ban on the procedure. It allows exceptions only "to avoid a serious health risk to the unborn child's mother," for ectopic pregnancy and if the "unborn child has a lethal anomaly."

Democrats tried to exempt rape and incest victims, but the motion failed.

In signing the measure into law, Gov. Kay Ivey said it might be unenforceable, but it is aimed at overturning Roe v. Wade . That's the 1973 Supreme Court ruling that legalized abortion nationwide.

Read More