Oh, Mikey..lol...your mom probably already knows. As she was the mom of a teenager, she's probably clued in by now!
But, as my teenaged daughter says "IT'S SOMETIMES EASIER TO ASK FOR FORGIVENESS THAN IT IS TO ASK FOR PERMISSION!"
You obviously have an affinity to animals...you should study toward a career as a vet, a vet tech or something similar. You have the heart for it!
Best of luck to you and your new little fella...he certainly is a cutie and will melt mom's heart in no time.