I feel like I'm getting my period?!

I m so sad, I have been tortured through my tww with all kinds of weird symptoms. Swollen breast cramping 6dpo hot flushes, nausea, sore back, pinching feeling and indigestion (pain and burping) . All of which come and go...I'm super angry that my body may be fooling me into thinking I'm preggers when I'm not. I hate my body right now. Any words of encouragement would be wonderful.