It's not getting darker. Should I worry?

Amanda • Just turned 30, trying to start a family with the love of my life. Together 9 years, happily married for 1.5!
I know I've given so many women advice about this exact question myself, but I think I'm finally pregnant after 16 months of trying so I'm having a hard time believing it. I got a faint positive yesterday and again today. I know it's still early, since I wasn't even due for AF until tomorrow, but will someone please reassure me. Can I celebrate? I haven't told my husband yet either 😣Top test was yesterday FMU -2 days before AF and bottom pic was this afternoon, SMU.