Beta is Sunday help with these lines

First response seems to progressing but the clear blue is confusing me. I know clear blue isn’t as sensitive maybe I should only test with first response. Do the lines looks to be progressing it’s hard not to constantly think about til I get my beta.

Edit... beta was only 18, go back Tuesday for second beta. The lines don’t appear to be getting darker they are showing up faster but not darker. Looking like another <a href="">ivf</a> cycle ending in a chemical