I had sex for the first time about two weeks ago and I am 2 weeks late on my period. Could I be pregnant?

Yes, you could be pregnant. There is no way we can know if you are pregnant. You will have to wait until you miss your next scheduled period and take a test.

If you want to play adult games, you need to be prepared for adult consequences. Did you use protection?

Yes we did use a condum both times

I beenvhave low back and belly pain filling sick in the morning and boobs are kind of sore

That's a little early to be experiencing symptoms already.

Anyway, what I said still stands. You're going to have to wait it out.

Tell my next period is due

How old are you?

You stated that your period is two weeks late, so you had sex on the day your period was due according to your post.

Wait and see what happens with your next period. If you miss it take a pregnancy test using first morning urine. If that test is negative wait a week then test again. If that test is negative, and you still haven't gotten your period then go to a doctor for a blood test.

As for using a condom, that's the least reliable form of birth control, the most likely to fail. Having said that, even if you used 3 or more forms, pregnancy is still possible. No form of birth control is 100% effective. There are women on this site, educated women, that were on 3 forms of birth control, all used correctly, and still became pregnant. Some more than once.

In other words, if you don't want to get pregnant, the only way to avoid it is to not have sex.

Good luck.

Sadly what alty said is true so if you don't want to get pregnant just avoid sex for now. But just so you know our body tends to go weird after our first time, mine did lol.