BFN.. 15 days late

AF is 15 days late, I have had really sore breasts, pain in my uterus for around 3 weeks, super emotional (I cried at how small a piece of toast was, and that’s not like me!), bad skin, stronger smell and fatigue. Still a BFN.

If Glow is right, I would be 5 weeks pregnant if I really was pregnant, by which time I should have already had a BFP, right?

Background: we have been trying about 5 years but I have a thyroid condition and the dr is monitoring it, as it may be causing me not to ovulate (although OPKs day otherwise). I got recent results that my thyroid levels are low again, so could explain all of this but I really feel pregnant this month (at least this is exactly how I imagine it to feel) 🙈 -

also my periods have been really regular for about 6 months..