Watch it live here. The Guardian are liveblogging.

19:30 - I was going to liveblog snippets of the debate but when you’ve got an MP comparing abortions to vasectomies, I think you can be sure you’re not going to witness a classic parliamentary exchange. It’s tempting to ask why they’re even having the debate.

19:40 - Lots of mentions of ‘babies’ and ‘children’ from Claire Curtis Thomas but none yet of how we look after unwanted babies or severely disabled children…

19:50 - How would an MP know if three-quarters of women in his constituency are against late term abortions? Did he put a poll in the field or is he less scientifically counting the letter he receives?

19:53 - Tim Ireland’s chipping in…

19:55 - And with the lazy, unthinking trotting out of 4D images and the old horseshit about abortion increasing the risk of breast cancer by Mark Pritchard, I’m leaving it. What a bloody circus.

22:45 - Reduction to 16 weeks defeated. (Bookdrunk live blogging and doing a bang up job.)

22:50 - Nadine Dorries’ reduction to 20 weeks defeated. Shame.

23:05 - 22 week vote due any minute…

23:15 - There we have it - 22 weeks defeated! As you were everybody. Until next time. Night all.