Have you gone through this too?

Hi everyone! I keep posting on here because I keep getting CONFUSED! I need some advice from everyone who has either gone or is going through this or knows someone who had/is. I have a REGULAR period. If I am late, its only for one day. From Jan. 26th-28th I had what I thought was implantation bleeding. It started ONE week after my ovulation cycle ended. I had the symptoms following: nausea, vomitting, loss of appetite, fatigue, swollen breasts, weird taste in my mouth, back ache, migraine, light cramps, 102.5 fever one day. But while I was feeling all of those symptoms I never felt "sick" like how I feel when I'm really sick. So it occured to me to start doing some research and thats when I found out about implantation bleeding and I had most of the symptoms. I have taken countless amounts of pregnancy tests (urine & blood) and they are ALL coming up negative. My period was supposed to be here Feb. 2nd, so now I am 11 days late and I have no idea how to feel. My GYN thinks I am stressed and is prediciting that I will get my period on Feb. 20th. But the thing is I know my body! This is why I'm getting so frustrated. Help?