If you don't know how, the best thing to do is take them to a vet or take them to a Reptile Expo. NEVER try doing it yourself because you might unintentionally harm the snakes. Learn from the vet/breeders a couple of times, then you'll get the hang of it!
As for the probe, I'm not to sure, but if you haven't done that before either, I would advise not to unless you get taught from a experienced individual!
Hope the babies are doing well!![]()