1970's movie about difficult pregnancy, mom looking at clown music box

I saw this as a kid -- woman had a difficult birth.

Afterwards, her husband winds up a music box with a two-dimensional clown puppet where a ballerina might be

The camera slowly shifts focus between the clown in the foreground and her blank face in the background

I think there was another scene where the husband's lying in bed waiting for a hooker who's taking a bubble bath

Ring any bells?