It is possible. You would absolutely get an accurate result on a pregnancy test right now! If it is negative then I would make a doc appt. Its never too early to start taking a multivitamin prenatal pill.
Take a test with first morning urine. If you're having unprotected sex, pregnancy is always possible.
If you have had unprotected sex then you might be pregnant. Test to find out.
the only way you will know is if you test!