m very far from an expert on
exercise but might be able to help with the motivation part. Find an
exercise you love whether it is dancing with your baby, walking up hills, or running or swimming or joining a gym, or even a variety. Then, if possible, find someone else to do it with you. It's much harder to not go if you know someone is waiting for you on the corner or at the pool. If you stick at it for 20 sessions you are much less likely to give it up.