So I got positive opk on day 18. That would put me about 6-7dpo right now. However af is due on the 5th of July. The numbers aren't adding up for me. Glow says I shouldn't test until the 8th of July but that would be 3 days past af. Should I test with an early detector since I'm 5 days before my period or should I wait til after its gone? Any thoughts?