Well it "should" be at the very latest a 2 day delivery. So you can "probably" expect it by Monday like me. I have heard of a few cases of there being late shippings even with prime though because of stock issues. If your mom ordered it early enough hopefully that won't affect you.
Odd eye: lucky! If you post spoiler stuff about it be sure to put it in transparent text. Some people won't have it for a week or so and are avoiding story spoilers.
Ah, I really wish we had the option for instore pickup. They forced us to have it delivered to our house for the switch bundle. ;_;