My oldest will be 4 next month and staring pre-k in August and then I have a 20 month old. Right now I have the birthcontrol mirena and I still have 3 years to keep it in. I'm thinking when my youngest is about to start pre-k is when we will start trying for our third. I say yes let's do it and then we will be done but DH is saying no way. Do you think in 2 years he will change his mind? Will we be used to not having babies in diapers? Thoughts anyone?