I am a U.S. grad student about to wrap up my first semester of my program. In one of my classes, we had a relatively large group project that ended a few days ago. Group leaders were not assigned, but I ended up more or less becoming the de facto leader for my group. One of my self-assigned tasks before submitting the project was checking the text on slides against the sources given by my groupmates, making sure the sources were relevant, making sure direct quotes were marked accordingly, etc.
Today I happened to be perusing one of the sources just out of personal interest, and I realized that part of one slide in a groupmate's section was extremely similar to a specific section within this source. I discovered that this text (we'll call it Source A) was a paraphrase of another document (Source B). My groupmate included text from Source A without quotation marks but attributed it to Source B, and I didn't catch it because I was comparing the text on this slide with Source B as that is what was provided for this slide.
Once I realized this, I pretty much immediately wrote an email to our professor, not to name names but just to explain the situation and why I didn't catch the issue and to ask if I can/should edit and resubmit our file; I haven't gotten a response yet. Does anyone more familiar with academic conduct procedures have any insight (or consolation) since I caught the error after submission but before grading/feedback? I've honestly just been freaking out about this all day and feel like I'm in limbo.
Thanks!