Hey hunny.
I'm still not seeing anything. You would be over 4w pregnant and really would have good lines if you were pregnant.
I'm thinking you should go to the doctor and have them run a blood test to check for pregnancy because sometimes it doesn't show on HPTs. You're late for your period which means there's a reason for it and if pregnancy isn't the reason, something else is and it needs to be addressed.
I've had missed periods before and it was due to cysts or having an inavolutory cycle where I didn't ovulate so I was extremely late for my period. There's so many other factors.
I just think you need to see the doctor now because at this point a line should show, but just in case you ARE pregnant, you need to find out and the only way may be a blood test.
Good luck. I have everything crossed for you.