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While looking up what the heck "lightening crotch" is I came across this great blog. Seems to written in great detail from the Dad's point of view. Thought you might want to check it out and pass in on to your man!
https://www.hisboyscanswim.com/
he's also got a guide guys can relate to for how big baby is each week, kinda like the one with the fruit.
https://www.hisboyscanswim.com/605/tarzans-ultimate-guide-to-baby-sizes-week-by-week-for-soon-to-be-fathers
Re: His Boys Can Swim Blog
he's also got a guide guys can relate to for how big baby is each week, kinda like the one with the fruit.
https://www.hisboyscanswim.com/605/tarzans-ultimate-guide-to-baby-sizes-week-by-week-for-soon-to-be-fathers