Most anglo women are like this, and it seems to be a cultural thing. They seem to transfer their affection from their husband to their baby, and there's not much that men can do about it.
The only thing I know is that a lot of non-Anglo cultures don't go through this sexual trough; in my case I'm married to an African and our sex life more-or-less continued as before. What we did was schedule a time for sex, because looking after a normal healthy baby is a long way from being 24 hours a day and seven days a week occupation. You may get broken sleep and have to change baby's clothes a few times a day, but it isn't THAT tragic.
There's always a way of finding a half hour to share passion with your husband a few times a week, if you look for it. And when you have sex with your partner it raises your testosterone, which raises your sex drive, which means you will want more sex. I know other men married to African women who had a similar experience to mine, and I also know men married to Asian women who also had regular post-baby sex. African culture is very sexual compared to Anglo culture, so continuing sex throughout a relationship is a normal part of life for them. Asian culture, indeed almost all cultures, are more sexual compared to Anglo culture.
All this doesn't help except that the basic thrust is that many women can and many can't be bothered. But if a woman does make an effort more than once in a while, she will feel sexier and she will feel the urge to have more sex, and so it goes on. If she doesn't have sex her testosterone levels fall, and her desire for sex falls, and so it goes on, but downwards. As for me, at the time I felt very satisifed with my life. In retrospect I had something very special, and knowing this now increases my love for my wife.
