Robin egg?

It might be a finch. I do know that it's not a robin's egg.

I don't think it's a robin's egg, as their eggs are remarkably blue. I have no idea, it's very hard to identify eggs without seeing the parents. It took me hours and hours to identify a hermit thrush's eggs.

I'd recommend searching for birds that have white eggs (with brown speckles) in your area. That's how I narrowed it down, then compared each species one by one. :)