False negative preg test?

[Newlywedded]

Argh! Does anyone have any experience or knowledge of false negative preg tests or just provide a reality check to me to not get my hopes up here.

I am 6 days late. My boobs hurt like never before, I’ve been extremely tired/ exhausted for past week., I did a boots preg test on Saturday when I was 4 days late and it was negative.

I definitely feel differently to when I’m normally about to come on, like the symptoms are on speed. But if the hcg is too low to show on a preg test surely I wouldn’t have symptoms so am I just clutching at straws in hope??

The chances of a negative pregnancy test being wrong after your period is already late is unlikely. Not impossible or unheard of but usually by the time your period is due or late you'll get a pretty accurate result. Only way to check I guess is a blood test with your doctor to check hcg. Fingers crossed your time comes soon but I wouldn't hold out hope for this cycle x