I don’t think any woman who seeks an abortion, is unaware that it will kill the foetus. Having to listen to the heartbeat seems performative IMO.

The heartbeat develops in weeks 5-6 and can be heard from around week 10. You can have a legal abortion in Italy until 90 days/~13 weeks.

AFAIK it’s 14 weeks in France and Spain, 18 weeks in Denmark and Sweden, 22 in NL etc. just for some context.