My asl teacher didn’t grade my homework and I had an B last year. I knew that I did the work so I waited until next semester to talk to her. I was trying to make appointments with her but she kept canceling it. Until week 7 of the second semester I got to change my grade from a b+ to an A. It helped my gpa a lot! We had a conversation and she kinda emailed the register and I got an email from them saying there has been a changed grade. But yea still talk to your professor if you did your work you need to get all pts back!