So confused! Please help

I really want to get pregnant before my SO goes to basic training.i have very irregular periods, and a history of cysts. I ovulated last week. I cant wait til after my missed period to see if im pregnant cause my periods never come when supposed to. This last week i have experienced naseua when smelling certain foods. And today my nipples are really sore. I also have sharp pain which is probably another cyst. I just want to get pregnant! I feel like im putting symptoms in my head. Help me please