Pain from pounding

Rebecca • 17. Getting ready to be on my own. Trying to live the best life I can while battling depression.
So my parents have been out of town this weekend. Friday night my boyfriend and I had sex. Then Saturday we did. We rested Sunday. Monday we did twice at his house. I started to feel sore. Then he came to my house and we did two more times and did twice today. And I am really sore. It hurts to sit. Lol. Has this happened to anyone else? Is it normal  after being so rough?