Is it too late to report a failed class to a UC?

<p>I got a D in AP calc for first semester and I didn’t know we had to report it to the UC’s. For some reason I thought that they would already see it on my transcript since they look at first semester grades for admission, so I didnt report it (stupid mistake). Acceptance/rejection letters are already being sent out, so I was wondering if there was any point in reporting the D? I’m also taking another math class, AP stats, if that makes a difference in my admissions…</p>