Hi Bochr, glad to see your baby shrimp are doing well and already producing! The 37-day old baby/teenager pic is so cute.
If anyone was still interested in knowing if a female can carry eggs without a male, I can confirm this, though it is a different species, some kind of Palaemon, Palaemonetes, possibly Macrobrachium M. Lanchesteri? Anyway, I have two females and they have had eggs on their swimmerettes 3 times already. They drop it within a week.
At first I thought they were fertilized, thinking they could have held a sperm packet received while having been at the LFS (I think I remember hearing some type of squids was it? can hold onto and use sperm packets later). But because they never developed into viable eggs, I later concluded they were not fertilized. I was surprised at the subsequent eggs at month 2 and month 3 after having been away from male presence so long. But the very last time they molted was the first time they did NOT have eggs. It'll be interesting to see if this trend continues.
-Gunmetal Blue