Your wife needs to have periods of rest. Many 10 to 14 year olds are anxious to get some pre-babysitting experience and references. They may be too young to leave alone, but they can play with an active child while Mom rests. Your pregnancies are relatively close together, and your wife may not have built back up to maximum nutrient and iron stores. She needs to eat an excellent diet with lots of iron.
Dietary iron is tolerated much better than supplemental iron.
I hope all goes well for you and your family. Watch this report about showing affection to boys. Find out here. You should not rely on this information as a substitute for personal medical attention, diagnosis or hands-on treatment. If you are concerned about your health or that of a child's, please consult your family's health care provider immediately and do not wait for a response from our professionals.