Pregnant pause

Rainy walk today, but enjoyable. I felt really bad when these sheep noticed Toby and I, and all jumped up and scurried away, alarmed. They then studied us from a safe distance with worried expressions. They all look a bit pregnant to me, so I didn't want to shock them into labour! Toby was more interested in his ball, thankfully, although I kept him on the lead just in case.

Or are they boys? I should have checked before writing this! Do all rams have horns?