None at the min cause my wife is grieving about something sad that happened and that's totally understandable, but usually we do it nearly every night, we both want to and it's a good way to relax and spend time together so I don't see why not, though marriage shouldn't just be about the sex, we spend plenty of time in the evening outside the bedroom too, like watching a movie or going out or something. If you both put eachother's pleasure first then everyone wins. That's my advice.