Wife has no libido at all. I think the fact she's not given any timeline for sex or much of an explanation is a sign there might be some relationship issues at play.
You've had 3 kids.
The most recent one was a caessarian.
There are a few low intensity activities that can help a couple feel close, without having sex.
Don't know what to do.
Tell yourself you wish to at least discuss it with her within the next month and if the opportunity hasn't arisen or she has rejected your attempts at communication, you may need to be a little more insistent that you guys talk.
My libido has plummeted since we got married.
Do you have any doubts or worries that could be behind your loss of sexual desire?