I am 11 dpo ., So I have my period every month on the same day which is the 19th. Well I ended up having it the 13 of may . Glow says I should be starting my AF within 4 more days, I have not had any symptoms except a few nights ago had a couple dull cramping in the evening then went to bed and woke up with severe cramps in my left side of my tummy and my left lower back but ended up going away. I haven't spotted yet at all and for either of my oldest I didn't either. Question is when can I test?? And what's your opinion on this..