Sounds okay, based on what I have read. I'm recopying a post I wrote a while back and attaching it below. Info is from Iguanas for Dummies book.
"I'm no breeder, so my knowledge is limited on this subject, but so far as I know, here is the approximate time table for gravid females:
Weeks 1-4 Normal appetite, but she will start getting restless.
Weeks 4-5 Appetite decreases and water intake increases. Feces gets very small and urates get thicker and yellower. Energy decreases and sometimes personality changes (friendly igs get short tempered, touchy igs get mellow). This is the time to build the nest box.
Weeks 5-6 Appetite very intermittent, water intake further increased, urates and feces continue to be increasingly affected. No apparant weight loss, but base of tail and hips may start to look thinner as eggs replace fat pads.
Weeks 6-7 You can feel the eggs when you pet her sides.
Weeks 7-8 Hips are bonier. You can see the eggs bulging at her sides. About a week after you can see the eggs like this, she will lay them.
Make sure you boost her calcium and give plenty of fresh water all along the way!
Good luck!
Wendy"