About to have my second baby when my first baby is still only 16 months old. Starting to get nervous because my son still wakes in the night sometimes. I usually give him milk, change his diaper and put him back to bed. I'm nervous because once I'm post-partum I'm going to be trying to heal down there and I feel like it's going to be hard for me to even lift my son. How long until you can lift 25 lbs? Any moms they have an infant and a toddler can u give me some encouragement?