Hissing Cockroach Eggcase! How Long?

[R.W.]

I opened the container today to see one of my females with an eggcase stickin out of her. I closed it so as not to disturb her further, but now I'm wndering: How long from this stage until the babies are born?
I'm so excited!

 

[arachnophoria]

If the eggs were moist and light yellow,then it shouldn't be too long,maybe a month.Often times,whe we see these ooths sticking out,they are deceased,but once in a while,you might catch them sticking it out and retracting it again and this indicates it is still viable.Don't get too worried,if the eggs were aborted,you'll find lots of tiny hissers one day and not know where they came from.