I had sex yesterday and having had on and off light left sided cramping throughout the day... I am supposed to ovulate in two days but this is my first time having sex. I'm a teenager and I'm not on birth control, but we did use protection and he pulled out. I haven't felt any nausea or fatigue or any other symptoms that keep freaking me out online. But since this is my first time and I ovulate soon, what are the chances that I'm not pregnant? I'm one to worry and I'm really freaking out here so help would be great.