Girlie,
Unprotected sex is the biggest risk you can take with a man. Both my guy and I took a test together before we started having unprotected sex. We also got on the birth control. It is very important that you consider birth control, condoms or not.
Sadly, do to the fact that you let him do that without a condom, he is going to expect that you let him do that again. If you really do not want to do it again with condoms, you are going to have to stand firm, even though the pressure will be on. Doing it without a condom is the ultimate sign of love between a man and a woman. You are saying that you trust them completely, and in reality, are risking a lot of yourself physically as well as emotionally. Please get on the birth control, and make him use a condom until you are ready to take it a step further.