How serious is the danger of having kids after 30? How about 35? 40?

How serious is the danger of having kids after 30? How about 35? 40?
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answer:Well, my wife had our first when she was 37 and our second when she was 40. Both are quite healthy and happy. Yes, there is a slight increase in the risk of problems when the mother is over 30. OTOH, there is an increased risk of being in an automobile accident if you drive on a wet road. Should you avoid ever getting in a vehicle if more than 2 drops of water fall from the sky? If you are in generally good health the increase in risk is pretty small.
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