Does this sound like a chemical?

[RandyGiles939]

From 8dpo till 11dpo I was spotting very lightly and only on wiping. At 13dpo,14dpo and 15dpo I was getting vfl on tests. At 16dpo the tests turned stark white again, I'm now 21dpo, over a week late and still no sign of my period, still having negative tests. Does this sound like a chemical?

Could you have ovulated later than you thought and that’s why your period is later? I think with most chemicals the period arrived at the normal time.

Maybe, but I usually have a 28 day cycle, and I was getting a faint positive at 13dpo