I would pick a day of the week and try once a week until they mate, and then put them together every three days. _My_ experience has been that if they are going to mate, they hook up fairly quickly. I would wait about an hour. But you can see right away if the male is interested- he'll immediately start following the female and rubbing his chin along her back, hopefully from tail to head, but sometimes they get confused. The female will either run away, whipping her tail, trying to climb out, or ignore him, or start twitching and jerking (good sign!). If she's responding positively to him, I'd give them an hour or two to see if she will consent. But if she doesn't, then just try again a week later.