Matthew 24:19

“But woe to those who are with child and to those who are breast-feeding in those days!”

And for these who fled conditions would be terrible, especially for pregnant and breastfeeding women who would have the most difficulty. For them it would indeed be a time of woe. But the whole point of these descriptions is that Jesus is saying that the tribulation will be so terrible that is spite of their condition these women would still be better to flee and face up to the consequences, rather than face up to the alternative which would be even more appalling. Among other things invading armies took little notice of such tender conditions when raping women, but this tribulation would go even beyond that.