Line progression HELP

Hi ladies, how important is line progression once you’ve gotten several positives? I just got my BFP two days ago and two days before that it was negative, so I do know I’m pretty early on. I just get nervous because I miscarried 4 months ago. Any feedback is appreciated! HAPPY MOTHERS DAY to all you mamas out there, and mamas like me expecting their little bundle of joy ❤️