She might be ready. I've had girls that got over the summer in the past that bred the next season. It just depends on if she's eating well, feels comfortable and when you plan to start pairing her. When I have a female that is questionable, I'll pair the male to other girls first and this gives her a few extra weeks to bulk up. I would make sure that you still quarantine her for safe practice. This will also allow her to settle in with less interaction.