Op, I am in your shoes as well. I will be 9 weeks tomorrow so my due date is in October. I do not plan to return after the baby because I want to spend time with my baby and I don’t want to commute. I am going to tell them I’m pregnant but I will not tell them my plans about not returning until a month prior to my last day, which, if I can make it will be in September so I will plan to tell them late August. I love my charges too but I am not in a position for them to kick me to the curb before I’m ready. Whatever the notice requirement is in your contract, that’s what you give. Ours is 2 weeks but I will give them a month. You have to think about you and your baby and I’m sure you’ll need every dime up until your last day. You are not doing anything wrong by not telling them your plans to quit right now.