Pain the second day

Hi! 
So I had sex with this guy last night it was the first time with him and my god this man was huge!!! I couldn't fit my fingers around him.
He got off 4 times and he was quite rough each time. He's the biggest I've ever been with and when I went to clean up, I saw a bit of red along with the other stuff lol. 
Today I'm incredibly sore, it hurts to sit and even laying down there's a very strong throbbing pain. I've never experienced anything like this after sex.
What should I do? Is this normal after being stretched or should I see a doctor? 

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors