Hi, I've just purchased some 2-3yo Dorper girls and they've come from a property where they've run around pretty much untouched. They haven't been wormed or vaccinated since they were bought as babies by the previous owners. They are in good condition so I don't think they're too wormy but I obviously want to drench them anyway. The thing is that two of them look ready to lamb at any moment and the others aren't far behind. I'm wondering if it's safe to worm and vaccinate this close to lambing or whether I should hold off? Any advice appreciated.