That's a good point, too.
Women back then didn't have baby formula, bottles, disposable diapers, diaper wipes, pacifiers, and a whole lot of other conveniences we have now.
Try being on the run with a young baby that needs to be breastfed every hour or two - and what do you do about diapers?
And Willamina is correct - a male figure trying to tell a woman that being pregnant is no burden or heartache is ridiculous.
Yes, there are women that handle pregnancy well, but there are women who don't. My SIL for example during her last pregnancy had a very difficult time keeping any food down. As a result, she had minimal energy to function during the day. Try being on the run with that problem!
Of course, that leads to the another issue - nutrition. Men who've had pregnant wives - what would you do if you were on the run with your pregnant wife and she had cravings for certain food? (Guys, you want to share any stories of what it's like to have a pregnant wife with cravings?)
Cravings likely had to go without being met. Coin too could present an issue. So too could location. Imagine what the Hebrews went through went through when traveling the desert with Moses.