(PC) Game freezes randomly after the latest patch

Since the last patch that brought back pregnancy my game randomly freezes so bad I have to do a ctrl-alt-delete forced shutdown to get out of it. Then I can restart, play a little longer and suddenly it just stops again. Tried to wait out but it didn't unfreeze in over 30 minutes.

I don't play with mods or cc, and never had this extreme kind of freezes before this latest patch. The last time it happened I didn't even get to start playing, the freeze happened while I was looking at the world screen. The other times it been in live mode and in build mode too.