Your nerves could really be putting your body through a lot. Relax. You have a good chance of not being pregnant.
Sounds to me like the chances of you being pregnant are slim to none. Especially if you took plan b. You won't be able to take a test until after a missed period anyway. Just stay calm, I'm sure your fine :)
He didnt ejaculate in me. But he did earlier that day in the condom and did not go to the bathroom. But I know he precummed in me. And there has to be sperm on the penis for a while right?