Am I the only one or is this normal?

So I've been ttc for almost a year now and I've had my false tests and feelings of pregnancy. This month however had been even worse, I'm moody as all get out, my boobs hurt and feel almost heavy and did I mention moody. Like breath in my direction and I'll rip your head off while I cry about it. I'm 3 days before my period and am scared to test because I don't want another no. Is this normal or am I crazy?