Following the release a series of pro-life sting videos targeting Planned Parenthood, Republican senators are threatening to defund the family-planning provider. A vote on their bill to strip Planned Parenthood of federal funding—which accounts for 40 percent of the organization’s budget—could come as early as Monday.

On Twitter, pro-life advocates are trying to help it along, popularizing the hashtag #UnplannedParenthood on Wednesday. Many of the tweets come from people who purport to have been, or have had, accidental children.

My mom was young and single. The church took her in and helped her choose life. And here I am. #UnplannedParenthood — Amber Cessac (@AmberCessac) July 29, 2015

My wife @breeannehowe & I had 3 kids. We were “done.” Through #UnplannedParenthood we were gifted with a 4th. A beautiful, wonderful, 4th. — Ben Howe (@BenHowe) July 29, 2015

#UnplannedParenthood is such a great hashtag.Letting women know that wonderful things can happen & not let panic/culture dictate ur decision — Kathleen McKinley (@KatMcKinley) July 29, 2015

In some ways, reading through the missives is sort of an upper—a testament to how difficult and unexpected things often work out well in the end.

But probe even slightly further, and the movement becomes disastrously illogical.

First, there is a big difference between an unplanned pregnancy and an unwanted one—and an even bigger gulf between a baby you actively choose to have and one you’re forced to carry because abortion is illegal.

Twitter hashtags aren’t exactly doctoral dissertations. Still, it’s odd how this one seems to celebrate unplanned pregnancy. Let’s recall that women have been desperate for effective birth control for centuries. During the Great Depression, women who wanted to avoid having babies they couldn’t afford used “disinfectant douches” that burned their genitals and didn’t do much to stop conception. The invention of the pill is partly credited with helping women expand their earning potential and achieve greater gender equality.