Genesis 9:7 NIV
As for you, be fruitful and increase in number; multiply on the earth and increase upon it.”
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Book:
Real Food for Pregnancy
https://lilynicholsrdn.com/real-food-for-pregnancy
Good luck to you and your wife, Kryton.
Nutrition-wise, I was going to mention Vit D which is in this link by Qiviut.
Good idea for the mother to get Vit D level checked and start on folic acid or a prenatal vitamin before conception.