pleasee! i want to know!!!!!!

"There are fairly distinct differences between the male and female red eared slider, but they may not be obvious until the turtle reaches sexual maturity. For males, this is about they time they reach 4 inches in length (about 2-5 years old). Females are sexually mature when they reach 6-7 inches in length (may take 5-7 years).
Male red eared sliders have much longer claws on their front feet than females. As well, the tail of males is longer and thicker. The cloaca is located farther from the body in males, and males also may have a slightly concave (curved inward) plastron."

males are sopose to have longer nails but theres no way to be sure unless you get a blood test

There are three ways to sex baby turtles. Two risk damage to the turtle. The third does serious damage to your wallet. Just be patient for a couple of years.