I need help

Kayla • finally conceived our rainbow baby and getting married next year💙💚❤

So I posted yesterday a positive pregnancy test it's very light and I not sure how far along I am but it just worried Mr that my lines didn't come up dark does this mean I'm still early in the pregnancy my doctors think I'm probably around 3 to 4 weeks I got blood drawn today to see my numbers I'm hoping this ends up being a good pregnancy