Hey Ethan,
Usually bloods and short-tails, will have a prelay shed after their last known copulation. If that was 60 days ago, then so be it, that is the time to start marking down or more like counting down the days. She should take some where from 10-12 days to shed; another 24 to even 40 days to lay, but rarely that long. That one was one for the records (Kara Glaskow). Anyhow, more typically, they will lay sometime between 24-34 days after they POS, with an incubation period of from 54-68 days depending on your IT. Good luck!
-Angel
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In life you can fall many times, but you're only a failure, if you don't try to get back up!
Evil Canevil