Katie Bauer!

Well, because I now regularly say the word ‘baby” (due to working on the Boss Baby team), all of my targeted ads are officially pregnancy and child related

It's the Facebook Ads Pixel. It's a bit of code that sits on a shocking majority of sites on the internet, and it counts the number of times you've visited certain pages and done certain things on those pages.

Is there a way to disrupt it?

You can definitely turn off audio capture on all of those apps, but it’s annoyingly to do over and over again because it inhibits use of features like “Instagram stories” (ie you can’t use it at all unless it’s turned on)

Are you sure audio is being captured and used for that purpose? The mic would have to be on literally all the time, and the technological infrastructure required to make that volume of unstructured data useful would probably not be worth the time and money to build.

All I have is my own anecdotal evidence. ¯\_(ツ)_/¯ There’s always been mixed public reporting as to whether or not they listen. Whether targeted ads are coming from data collection or audio collection, I find either creepy, especially around sensitive subjects like pregnancy.