Need advice

Nicole
I feel like I'm pregnant because I'm two weeks late and one day. Nipples hurt and I'm emotional all the time. No sign of period cramps. I've taken three tests all of them say negative!!! I have an appointment for the 23rd of March but I just have this instinct that I am pregnant like I just know !!!! We've been trying for about seven months after I got off of depo. Please help am I crazy to think I might be ???