I had unprotected sex 2 days ago, since then i have been feeling cramping, nausea dizzy backache headache and the very sec day i saw spotting am i prg?

Too soon to tell: You symptoms are not likely related to pregnancy. It would be too early to have pregnancy symptoms. If you are having unprotected sex please make sure you are on a prenatal vitamin with folate (folic acid). Check a pregnancy test if you miss a period. See a doctor if symptoms do not resolve soon.

I Don't know, Maybe: If you were ovulating and he ejaculated inside you, you could be pregnant. Wait to see if you miss your period, then check a pregnancy test.