Quick question, yesterday I got very faint positive with 2nd morning urine at 10dpo

This morning my urine was very concentrated (dark dark urine) and they test was negative

In my last pregnancies I’ve never had luck with 1st morning urine

Can too concentrated urine affect test

I’m going to hydrate a might and test again with 2nd or 3rd morning urine as in pass my results have always been better

Just hoping this isn’t another chemical😔