Hi there.
I don't understand why your cat is getting in the way of your having kids. We do not want any gory details (TMI!), but plenty of us share beds with cats and get pregnant, too. So I am not sure why you need to break the cat of this lovely habit she's developed with you over several years, especially when you, at least, are enjoying her company. (Of course, if the cat gets too rambunctious before the lights are out, just shut her out until you're all ready to sleep. Then open the door and let her in.)
If your wife is allergic to the cat, or the cat is causing some kind of medical or sleep problem, please let us know about that, and I'm sure some of our experienced people here can give you advice (post to the behavior forum). But I hesitate to advise you to go through the potentially stressful, insomnia-inducing process of changing your cat's long-term habit without a health-based reason. If you're trying to have a baby, you need to keep your own stress level to a minimum, too, obviously....
Is your wife worried that the cat will be a threat to the baby when there's a crib in your bedroom someday? That's a misconception we can also help with.
BTW, it's very off-putting for us to read messages written in all capital letters. To us readers, it looks like angry shouting. This may be why no one has responded until now.
