just tell me I'm not pregnant please...

I am now 2 weeks late for my period. It is now 6 weeks since my last period. There has only been one time in my cycle that I was 8 weeks late and that was 2 years ago... I usually get it right on the 23rd of the month and so far did not on April 23rd. I had unprotected sex one weekend we thought my period was coming in two days and we usually always wear condoms but my boyfriend pulled out way early and I have take 4 pregnancy tests and all negative. My last period was march 23rd)): Just tell me I'm not pregnant I can't handle that right now if it was next year this time then I would be the happiest person ever but just not now.