Hi Becca and welcome to the forums!
First of all, congratulations on your all your hard work. It looks like it’s paying off. Would you mind sharing with us some of the things you’ve done to improve your credit. 754 is a pretty good score!
If I remember well, it only took about 2-3 days for me to get my Capital One card once I got the email saying it had been sent. So I wouldn’t be surprised if you got it before Saturday.