Are we getting our rainbow baby?

Laura • I'm 30, married, we have a gorgeous girl born in June 2015 and a gorgeous boy born Feb 2018
Pretty sure I see a faint line? Hubby sees it too. Are we crazy? I'm only 9dpo. We have a little girl who's nearly 2 and we had an early miscarriage in Feb. I would have only been 5w2d. We're trying not to get our hopes up but hoping this is our rainbow baby. I'm going to test over the next few mornings, AF not due for another 5 days. Hopefully the line gets darker and darker!!