I'm a newbie too, and I freak out to an embarrassing extent on a daily basis, so not to worry! My girls do not do this, but they were both pregnant when they were rescued, and one still is. So they're a little too fat to hoist themselves around :) But what I can say is that I was very worried that I might have mis-sexed them too, but once Jersey's litter came along, I was able to look and successfully sex them within an hour of their birth. They are now 4 weeks along, and the difference is very, very obvious (and getting a penis, if there is one, to extrude is very easy). So if they're looking like girls, I'd say they're girls!