Can someone please help

Ok so I'm 24 my husband and I have been ttc for a year now I was on the pill for 5 years and got off it last june I've been tracking my cm but didn't use any opks af is due the 22 and I was wondering if someone could help me figure out dpo around the 5th glow said that my cm was optimal I've had slight cramping in my lower abdomen pelvic area which I have had before mid cycle but they've never lasted more than a day going on 3-4 days now any idea when I should test I hate that I have to wait but don't wanna use the only test I have if it's to early