What does this test mean?!

Ok so my period is three weeks late. I tested when it was five days late and got a bfn. No pregnancy symptoms whatsoever. Except a little bit sore boobs but that’s normal before a period even though my period is late so idk. But no morning sickness. No nothing.

I tested today, at three weeks late and got this???

The pregnancy line is a solid line but the control line is hardly there. Is this a BFP or is it an invalid test?? I’m testing tomorrow morning again and the earliest the clinic will be able to see me is next week. Thank you for your help mamas 🤍🤍🤍