I too have irregular periods, and never know when im gonna have my period. I had unprotected sex the whole month of May. I started my period May 1st and it was really light. I still havent started this month, but who knows i just may be having my irregular period? I am wanting to know when to take a test.
Since your periods are irregular it would be hard to say,when was your last cycle,do you use ovulation tests.if you were ovulating at the time then its possible.