Can a Pastel BP lay a clutch almost 4 months after last breeding?

I do not have exact dates of last breeding latch with my male, he was sold easily 3 months ago because I wasn't receiving any signs that my female was ovulating. This is my try at breeding and bought a male solely for that purpose. After 6 months of intermittent meeting between the two, I gave up and didn't want to care for the male any longer because he was a very aggressive snake. So it has been between 3-4 months since last meeting and today my female laid 7 eggs... 6 of which are slugs and the other is appropriate size and white in color. I will remove eggs once I am sure she is finished laying them all. How do I find out if it is fertile and whether I should take the time and effort to incubate the sole egg... And is it even possible for her to ovulate for that amount of time, or is this egg a "dud"?

Shine a flashlight (you can use the one on your phone) through the egg. If there are veins in it then its a good egg. No veins =bad egg

I haven't disturbed her yet, but I don't understand how it is possible for this amount of time to have past

Sent from my SAMSUNG-SM-G900A

We have heard of snakes retaining sperm from the previous years breedings - it's just another example of how amazing these animals are. :D

Well I'm excited then to see if it is vascularized then! Just monitoring the temp of my incubator set up before I move mommy

Sent from my SAMSUNG-SM-G900A

Yes, definitely! Snakes can retain sperm from previous breedings for quite a long time. Personally, I've had incidences of retained sperm from the previous season and this year a ball python female lay a fertile clutch of eggs 9+ months after the last exposure to a male!

It's a shame that only one in the whole clutch isn't a slug then :/ first time breeding though and I'm sure she was under weight

Sent from my SAMSUNG-SM-G900A

http://img.tapatalk.com/d/14/08/06/ymunu3a6.jpg

One of 6, and it is vascularized!

Sent from my SAMSUNG-SM-G900A

if you haven't already you should through the slugs away. no point in incubating them. just my observation from your last picture. if they start to deteriorate during the incubation period I hear the smell is pretty awful.

I wasn't sure if it would put the other egg into shock, and I am still trying to keep a stable temp in the incubator so I figured 5 warm eggs couldn't hurt until I have things figured out

Sent from my SAMSUNG-SM-G900A