It seems like a bit unclear. Can you please clarify how many babies your friend has? Here's a translation and a few suggestions on how to respond: "It's clear that your friend is a homophoneme for 'vaca', but it seems like it might be referring to a cow. If that's the case, it would be more accurate to respond with something like "Huge congratulations! How many cows did your little ones bring home?" or "Congratulations on the cows! Eight calves or the original number is not specified, so I'll assume it's 5 for now, but four babies would be a traditional number." However, if the meaning is something else, I'd love me more information to provide a proper response.