It can be normal for some. Does the first egg look fertile? Sometimes they "clear out" infertile eggs before laying the main clutch.
Look out for abnormal bulging around her cloaca, as this could be one symptom of eggbinding.
However, your best bet now is to leave her absolutely in peace to settle undisturbed in her laying box.
I hate this bit - I currently have two heavily gravid females still circling their vivs and treating their laying boxes as though they were invisible. Argh! To think I wasn't planning to breed this year... Why do I do this to myself??
Good luck...