A agree with Brad. I would pretty much leave them be for a few months.
Around month 3 or 4 you could take a flashlight and briefly shine it above the egg. At that point you could see vascularization and/or embyonic development pretty clearly
Carpet eggs are quirky, Ive had a few that took literally months longer to hatch then they should have.
Don't believe everything you hear. You will not see any development that soon. Some of the literature linked here mentioned a diapause, which is as a trigger to begin embryonic development, indicative that it does not start when laid. Mother Nature builds in this trigger so that chameleons typically hatch 3-4 months after temperatures begin to warm with the fading of the cooler winter season. With or without a diapause, development usually will not begin until the third month or later. A little research can go a loooooong way
With some ill-informed advice to start with I set the temperature too high on the very first day, (only for about 7 hours) the temp could have reached as high as 37c, would you imagine this would have destroyed them or am I still in with a chance? After that 7 hours they were put to around 20/21c.