Possibly pregnant

Okay this might be a long post but I've got so much to say. I am 11 dpo and took a frer and it was negative but I swear I see a line. I have 3 days till my period and something just tells me I am. I have had cramping on the left side of my ovaries, heartburn, nausea, feeling warmer than normal, insomnia, mood swings, dizziness, I'm picky with food. I just want to know but I know I wont truthfully know until my supposed period and I just want my little baby in me growing like a weed. My fiance thinks I'm pregnant because he thinks once we had sex a couple days before ovulation he just knew. I had the same feeling but I'm getting nothing but discouraged. I just ugh am making myself so upset I cant sleep. I just want to be pregnant...😔🤰😭