Don't panic.
It won't do any good!
And it's really not needed. If she is huge as you describe, and has not even shed yet there is a very good chance your seeing her ovulate. It's harder to see in corns~ but there is a definate mid body swelling~ looks like she ate several large mice when she hasn't eaten.
This could be fun in your class. IF she is ovulating, once the swelling goes down, there should be the prenatal shed in about 2-3 weeks. Then you can usually let her gently run across your fingers actually count the eggs inside her (just count the what feels like pearls sliding across your fingers). It will be another 2-3 weeks AFTER the prenatal shed before you should expect eggs.
Have fun~ and don't panic.....panicing won't help and I doubt you need to!
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Cheryl Marchek
AKA JM
The Red Dragons Den
Do not meddle in the affairs of Dragons~ for you are Crunchy and taste good with Ketchup!