I'm 23weeks pregnant and I want sex all the time my hubby is worried it will harm the baby but I really can't help it. If he won't have sex please give me advice on what I can do or say 2 make him change his mind.

Tell him that he can take it from mothers who never gave it up 'because they were pregnant'
That his worries are his imagination.

Sex is not going to harm the baby. It's impossible.

This is obviously your first.
I must admit I felt the same way with our first and didn't want to possibly "damage" the little one in anyway. The males' protection instinct kind of goes into over drive.

Tell your hubby it will be fine and to enjoy it while he can, because in a few months timw sex will be the last thing on both your minds, lack of sleep kind of takes over ;)