Neighbor's friend

I'm sitting in my upstairs apartment right now while a 16 year old boy is banging on the front door of my downstairs neighbor, I think its his grandson or younger relative but I'm very close to storming downstairs and having a word, he's been banging on the door for the last half hour shaking the whole house. my dog is freaking out and running around the house whining. idk how much more I can take. I'm 18 weeks pregnant and I've had bad headaches the whole time, today no headache, now? I have a freakin headache! Thank you for ur time