Faint control line?

Hi all! I’m 5 weeks and 2 days (first baby), and I took another test today just to be sure I’m still prego 😂. The “pregnant” line showed up right away, and the control line was very faint. I did several others and they were all the same. Anyone experience this? I’ve heard it can be because the “pregnant” line sucks up all the dye when hormone levels get high, but I find this interesting because I’m not really even feeling nauseous yet and I’m only 5 weeks!

Thanks!!