Female pythons can definately retain viable fertile sperm from copulations atleast 2 to 3 months before ovulation .
I have had a example of this happening from a female
jungle carpet python aged 2 and half years old that produced a clutch of 8 eggs from 2 mating opertunities 8 to 10 weeks before i observed ovulation .
No further mating introductions were made because the female did not appear to be growing follicals and i was focused on introducing the breeder male to my other 3 breeding females at the time .
All 8 eggs are appeared fertile but i did not candle them.
Anyway 6 healthy hatchlings emerged from the clutch
proving the female stored sperm from those copulations at that time .
Steve
I do beleive the Jag looking neonate you hatched from your
jungle clutch is the result of a stored sperm from the previous years copulations and a couple of the other hatchies look like jag sibs with reduced head patterns etc
cheers
Roger