Strange black spot on penis

This morning in the shower I noticed a black spot on my penis. It must only be a day old, i have booked a doctors appointment but i have to wait two weeks to get seen. I struggled to get an image but i put some on a reddit account. https://www.reddit.com/u/Feisty-Bullfrog-2338?utm_medium=android_app&utm_source=share I've been worrying about this all day. It is making me extremely anxious. I just looked at it again and i realized a second spot has formed. This time much smaller and closer to my head