Early signs?

My nipples are sore and sensitive, I've had headaches which was a sign my last pregnancy, I had cramps for two days and was feeling super nauseous all week, and my acne is coming back with a vengeance but normally that only happens when I get closer to my period, which I'm not due until next month. And some foods just sound terrible to me that I'd normally enjoy eating, my appetite just kinda went away. So I'm just confused and wondering if any of you have had these signs before you found out you were pregnant? Oh and also I have creamy cervical mucus and back soreness for no reason. Not sure if that accounts to anything.