This is my experience only, but FWIW:

If no AF yet do I need to wait till it returns to have it inserted or can it be done before it returns? You don't need to wait, I had it put in 10 wks after DD's birth.

Can you drive afterwards or do you use any anasthetic that stops you driving? I drove myself there and home (with DD - who slept in the pram during the procedure!). It's usually done by a gyn in their own rooms.

Do you feel it once in place?? No.

Does it hurt going in?? The procedure was uncomfortable, but not painful. Bit of cramping afterwards. My gyn used a local anaesthetic on my cervix.

Do you feel it while DTD?? No, but DP says sometimes he can 'just' feel the strings. My gyn says he leaves the strings a bit longer because otherwise he has had men talk about the strings jabbing them while DTD! It hasn't interfered with DTD.

Hope that helps. I've had mine for nearly four years and it's soon making it's exit!