I have irregular periods. However, for the past couple of months I've been getting it every so often:
January: 7-8th, February: none, March: 14-31st (yikes!), April: 10-16th, May: 1-11th. I had unprotected sex the last week in May and the first week in June. According to my calendar (I use mymonthlycycles) I am two days late (my period lasts an average of 41 days).

I've already taken two HPT which came out negative. I had some light bleeding about a week ago for two days, very light pink, plus the cramping and the fatigue. I'm still experiencing the fatigue and the cramping, and if I don't eat anything I get a bit queasy. How soon can I test again? Should I wait another week? This is driving me insane! I hear some women who are irregular took as long as their 10th week to detect the hormone on a HPT. Help!