Starting to Lose Sexual Interest in my Wife

I am new to this forum so hello to everyone. First, I have the opposite problem of some on here. I have a very high sex drive. My wife has little to none. Her usual reasons are that she is too tired, too stressed, too busy, too whatever. She is now pregnant and wants it even less. Twice a month was the going rate before and now we are down to once every two months. As a result, I am starting to lose interest in her. I became aware of this the other night when she was naked and I could not have cared less. In my defense, I am constantly touching and kissing her. I do not do it to be sexual. I go out of my way to not be too busy for her. She seems to enjoy this aspect of it. However, come bedroom time she is uninterested. I will admit that I have been performing on myself a bit too often but not sure what other option there is. I try to initiate it at different times of the day. Try to be spontaneous about it but something is always in the way. We have been together for 7 years (married for 5) and she has been largely uninterested for half of it. I have thought that maybe I need to find a way to just stop wanting it so much. I love her and we fit perfectly in every other way than this. Currently, I am making an effort to immerse myself in a hobby and see if that dulls my desire. Any suggestions?

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