J.L.
Oh my goodness darling, this is like "the" most common thing.
Who knows what it's due to exactly, hormones, stress, kids, chores, work, lack of romance. I bet it is due to lots of things, but I think this happens in any relationship at some point, and sometimes it is a bit of a cycle.
Men need sex to feel loved, women need to feel loved to want sex. We get so caught up in this cycle that we get absolutely nowhere.
My husband also wants it all the time, and does'nt really want to put much effort into getting it, which sucks for me, because I ca'nt just turn it on at a moments notice . As mommies, our plates are always full, we have so many jobs to do and roles to fill. It is darn dificult to go from tending to kids, to tempting your man in a matter of minutes.
We decided to make a schedule that would work for both of us as to how often we needed to make time for eachother. He decided he could do every other day, and I agreed because that was better than several times a day that I was currently being hounded for it. That worked for awhile, and if he wanted it, he had to get the kids situated while I had some me time, then we would just do the deed whether I was into it our not, and 9 times out of 10 I would get into it after all.
I also demanded 5-7 days off for my monthly, and the right to blow him off every once in awhile, but I really tried to stick to the schedule, and it brought us much closer to eachother. Men are soooo much easier to deal with when they are getting thier needs met. I also was able to tell him that he needed to put some extra effort into being romantic now and then, and he responded because he was happier, and he knew that his efforts would likely pay off, where before he would try and then get shut down, so he stopped trying.
So you just need to gather your thoughts, and sit down with him and make a plan together of what you need, and what you are willing to do for him. Tell him what you like in the moment, or right after, when he is most attentive to your needs. But when raising young children, every time can't be amazing, sometimes we gotta just settle for good enough, and when it comes to sex, good enough is a pretty nice experience anyway. Just try to be more open and relaxed about it all.
Let me know if you wanna talk more. Good luck girl !