Keep your comments to yourself, please

I just have to vent a little today about someone whose random comment really ticked me off. It is probably my pregnant hormones & I wouldn't usually react this way, but all that aside - you decide.
I left church today with both boys by myself because Gary had Elders Quorum stuff to do. Jackson had been crying since we left the chapel (it wasn't like he was crying really loudly either) & I was urging Dan to follow me & I've got my lesson bag & my diaper bag trying to make it down the stairs with all of it. This older lady behind me says (as I'm halfway down the stairs) "Why don't you pick him up? Then he won't cry as much." I just looked at her, trying to hide my disbelief & said "Because that's not why he is crying." Which was true, he was crying because he wanted his sippy cup. What ticked me off is that couldn't she see I am 8 months pregnant with two bags over one shoulder, holding the hand of a toddler trying to make it down a flight of stairs, without taking a tumble, while coercing a 3 y.o. to follow me?? Now wouldn't it have been so much more helpful to offer to take a bag or something?

Phew - thanks for letting me get that off my chest!