Cycle day 46..negative tests

Its cycle day 46 and still no period. My period has skipped before, but only when I struggled with eating. I have been doing fine, and yet, no period. I know stress can delay it,but I'm now more stressed that I may be pregnant than anything. I had sex before my fertile days, during my fertile days (or at least what eve says are them) and a day before my period. No period and 4 negative tests. I have no intentions on being pregnant.. And my next period is in 13 days... Should I just wait it out?