My periods started on 11th November, I had unprotected sex on 21st of November. Will I become pregnant
My menstrual cycle is approximately 32 days

No on call tell you online if you will become pregnant. If you had sex, especially unprotected sex, the possibility exists. There is nothing you can do but wait and take a test, either at home or in a medical office. If you do not want to have a child I would also suggest looking into birth control while there.

Is it possible, yes, you will now have to just wait and see if you have your next period. If you don't, then time for a pregnancy test.

I had unprotected sex on November 21. First day of my last period is November 11.9 days after intercourse I am having lower back pain and slight cramps in my stomach. Could I be pregnant. Home test is negative