Is it normal to have that much sex?

St

last weekend I stayed over my boyfriend's house, we were alone for 2 days so we started to have sex. The first night he fully ejaculated inside of me 6 times since I'm in BC. Then on Saturday we went at it all day and ejaculated in me 9 times I think. And then Sunday we did it twice. My vagina been feeling super sore and it's been having a weird smell. Btw my bday was yesterday so he's 17 and I'm 16 now