Just for future reference for you, just because he didn't ejaculate, doesn't mean you won't get pregnant. Common misconception, and has surely contributed to the many unwanted teenage pregnancies that occur.
I highly recommend you start taking prescription contraceptive pills if you want to remain sexually active. They're extremely reliable if you take them consistently and they're easy to obtain. Get in touch with a Planned Parenthood if you have one in your area, and they'll be glad to help you.