Hi
Occasionally the tup will jump up on a ewe who won't stand for him cos she's not quite ready. If he's well raddled up this can leave a mark on her, but you'll learn to tell the different between that and when it's been properly rubbed in, ie he's done the job properly. If the raddle is rubbed in and definite, then he mated with her.
He may mate with a ewe in season several times over a 24 hour period or so.
If you put a new colour on him after 17 days and he marks them again, they weren't got in lamb the first time round and have come back into season.
And you know, of course, that the only silly question is the one you wanted to ask and didn't