A little advice

My husband and I have been trying for almost a year with baby number 2 according to glow my highest fertility day was the 15 and 16th we have had sex every other day before and after. My period is supposed to start the 30th when can I take a test. I have been experiencing mild cramping and also feeling very tired, I never fall asleep on my couch and yesterday I fell asleep for 2 hours. Thank you ladies