IDK PREGGO OR NOT

Me and my husband have decided to start trying to get pregnant again . Well we did the deed like we were supposed to while I was ovulating and now I am sitting here and have been nauseous for 2 weeks. Like literally everything I eat or even during makes me feel like I'm going to throw up. I've been having headaches and back ache and horrible heartburn. Also my cycle is coming for you to come tomorrow I've been cramping but it's in my upper abdomen. So I don't know what to thanks nervous to take a test tomorrow