We have a 2 year old daughter and are expecting our son in June. Right now she's still in the crib but we have her bed and other things ready to go for her big girl room. When should we set up her bed and move the crib into the nursery? I want her to have enough time to get used to it before the baby comes so it's not so much change at once and so she doesn't feel displaced by the baby. We only have about 3 months to go until baby so when is the best time for this?