Dropping grades?

<p>I've already been accepted early action. But, like most seniors, I have slumping grades. I have all A's except 2 classes, which are C's (Calculus and Econ). I received an email from the University saying to contact them if grades or dropping. Do you think it's a good idea to contact UMich and let them know about my dropping grades BEFORE they get the final transcript this summer?</p>

<p>I’m in the same boat. For my mid year grades, I had 3 As and 3 Bs… but I’m afraid of getting a C or two this semester.
I’m worried they might take away my acceptance…</p>