I’m honestly so confused.

Guys I’m 12 days late. All tests have said no, but I’ve got morning sickness, hot flashes, food cravings and aversions, every symptom of pregnancy is there. I’m also breast feeding my one year old currently. Has any other moms had this issue and still ended up with a positive test? I feel like I’m going crazy.i should also add that since the day of my expected period I’ve been cramping. I keep thinking it’s there and end up mistaken. TMI but I’ve also been having more discharge than usual. I just don’t understand what’s going on with the tests or my body to make me feel like this.