Faint lines at 5 weeks

I have been testing with my first wee in a morning for 5 days now and there is absolutely no progression. The line is definitely there but is a fair bit fainter than the control line and for 5 weeks I would have thought it would be very dark now. I’m on holiday for a week so can’t speak to anyone and have been reading a lot about chemical and ectopic pregnancies so am just very on edge 😣 any experience with this?