Ovulation and prelay shed timeline help?

Hi, I have a 5 year old female I got back in November, have had 5 successful locks with my male, the most recent being last week and the one before that December 9th. I'mnnewer to breeding and I'm trying to understand the timeline. The first pic was December 9th, I was fairly certain she was ovulating, the other pics are tonight. She has been mostly on the cool side of her tank but is suddenly on the warm side, definitely about to shed, INCREDIBLY hissy and tense just from me lifting her hide to check on her. She's also gone from 2700 grams on December 2 to 3400 grams now. Is my timeline weird or am I misunderstanding? If she ovulated dec 9th, shouldn't she have had the prelay shed around new years and almost have eggs by now? Any help would be greatly appreciated!
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