I got my first depo shot two weeks ago on a Thursday. Then I waited one week to have unprotected sex last Thursday. My period was supposed to come today but it hasn’t and I dont know if it’s because I got the shot and it messed up my cycle or because I’m pregnant?? I waited exactly week to have unprotected sex and he did not cum in me. Is it the shot that messed

Up my cycle or am I pregnant??