How's the bump? (How's the baby/foetus/little thing growing away inside the womb)

Is my guess!

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Without any context at all, it could mean

1- scrapes, bruises, skinned knees and babies. The typical period of a young parent's life (especially Moms) when their main concern is their small children. Picture a Mom at home with young children of several ages, a baby (or more) and toddlers on up through elementary school age ( climbing trees, running hard outdoors to play and often falling down, skinning knees, getting bruises). A bump is a common way of saying a wound, a "hurtcha", a "booboo".

2- It could also mean a support group for young parents expecting or with babies. In this case, I imagine that the word "bump" comes from the expression of "to give someone a bump", a term that means to give someone a lift in a vehicle. To ease someone along their way, to help them make progress. The term means "to hitchhike" in a figurative sense. Give someone some advice to help them along the "roaod" of their parenting eperience.