Can I reenlist for Infantry if not an E-5?

Well I been hearing rumors about if your not a sergeant or higher than you cant reenlist. My ETS date is June of 2013 and I joined the Army Jan 2010 with a 3year and 16weeks contract. Being so I doubt I could make sergeant by the time im supposed to get out at least I went to Ranger school and got my tab or sucked a lot of dick which that's not me. So what could I do? and I dont wanna reclass to being a POG id rather get out than do that.