Every time you have sex, there is some chance that you will get pregnant. No method of birth control is 100% effective.

You said he ejaculated "near you"? You can't get pregnant just from sperm being close to you. It actually has to get into your vagina some way. That means if he ejaculates on your thigh, and it drips to your vagina, pregnancy is possible. If we're talking about your arm or the sheets next to you, it's not possible.

I would not bother with the morning after pill if you have been taking your birth control like you are supposed to. That's what it's for, after all, preventing pregnancy. As long as you have been taking it every day and at the same time every day, it's about 99% effective even without a condom and when your boyfriend ejaculates inside of you. So assuming you take it as directed, it's pretty effective all by itself.

.as .llewellyn said as long as you have been taking your pill correctly then you should be fine.