The female we had lay a few weeks ago moved back and forth some. And our Pinstripe female that is due to lay in about a week has been doing the same thing. They spend most of their time coiled up on the warm side, but I have caught them pretty regularly hanging out on the cool side for short periods of time.
They know exactly what they need to do to regulate the temp of the eggs so it's not something to really worry about.
Also, our first girl laid 46 days after Ovy so I don't think it effects the time frame from Ovy to laying to much.