Are the things that are happening to me symptoms of pregnancy?

I had unprotected about a month ago. I haven't started my period but I honestly forget when I'm supposed to start. I think anytime now. Anyways, here is what has been going on with me: lower stomach pains and cramps, lower back pain (more than usual because I usually have some back pain), greasier than usual face and hair, thirsty a lot, having to pee a lot (although that could be from drinking so much from being thirsty so much lol), and randomly getting clammy or sweaty. I know some of these are symptoms. Are all of them? I am really scared to try a pregnancy test.