I'm not a virgin but it had been 3 years since i had sex and when i finally did a couple days ago i notice after that my body was sore is this normal?

Yes!: Sex, like any other physical activity, may use muscles you're not used to using every day. It's just like if a friend asked you to go to a pilates class, you have never done one, and you worked hard in the class. You will sure be sore the next day! sex is no different -- it's excellent physical exercise, good for your brain chemistry, and normal! just be safe with foam & condoms. Good luck!