I have a female who has shed the first week of January, the first week of February, and is currently in blue now!

To my knowledge she has no ovulated but I expect this shed to be her pre-ov shed. She was paired since October 1st.

Here is a quote from snakesRkewl (Jerry) that I really liked how he summed it up.
breed, shed, breed and grow follicles, shed, go into glow continue to grow follicles, ovulate 3 weeks or so before next shed which is the prelay shed, then 27 to 35 days on average until eggs
Granted...I don't know how many sheds my girl had before January (I purchased her around December) but I've determined this is probably her pre-ov shed and she had an extra shed thrown in...unless of course I missed ovulation by chance.