Checking their site throughout the day doesn't matter one bit. If you don't find it fun to check, stop doing it. Public service announcement for people that don't know:
Your EDD is irrelevant until you get a TeslaVision prompt. Even then, it's not very reliable; but before that prompt, yes it's irrelevant. So don't get your hopes up or get upset at your dates. 9-13 weeks EDD might mean you're getting the deliver 1 week from now. EDD don't mean anything and checking even once a week is a waste of time, again, unless you find it fun to do so (some find it very fun). EDD can and will change over and over and over and over again in seemingly random ways. Obsessing over it is pointless, asking on the forums what it means is pretty pointless too. Best advice I got was "Order and forget". I've had zero frustration over the waiting time; and I ordered in March. It's your choice to make it a fun waiting time or not. Choose fun