I have been with my fiancé for quite some time now and we have a beautiful baby girl. Lately he has become someone else. He was laid off from his job at the end of September and since then he has become very controlling, manipulative and demanding. I can't seem to go anywhere, text my friends or even talk to my family for very long without him demanding to know where I am, who I am talking to and/or who I am with. Prior to him being laid off he would tease me about cheating and I could tell that he was teasing. Now, he no longer teases about it and accuses me of leaving my job to go see someone else.
He has been accusing me of cheating so much that in his head he has lead himself (to an extent) into actually believing that I'm cheating. I AM NOT!!!!

When I get home from work if I don't automatically take our daughter from him and take care of her for the rest of the evening, he tells me that I am worthless and that I am a worthless mother. I know for a fact that I’m not worthless mother nor am I a worthless person.

I make sure that our daughter is well taken care of and everything is in her best interest, which is why I am posting this. I do not want to tear my family apart, but I refuse to be treated this way any longer and I am not going to allow my daughter to grow up thinking that a man treating a woman this way is acceptable.

I have finally been driven to the end of my rope by him constantly accusing me of cheating and by him trying to control me. He is the one causing the problems, yet I'm the one who suffers and is made to feel like this is all my fault.
How do I approach him to let him know that I am tired of constantly being accused of cheating? That he is controlling, manipulative and demanding? That he is the one driving the wedge between us and ready to lose his family if he doesn’t stop, without making him feel like he is being backed into a corner?

I would like to fix our relationship and make it stronger, rather than turning my back and walking away. So any helpful comments or suggestions would be greatly appreciated!