Am I pregnant or not?

I took test one on 8/19 looked negative came back to bit after it had this line as if positive.

Same thing happened on 8/20

Today took one first thing this morning (because how I am 5 days away from period day 8/27)

But now it’s negative….

If it happens again with this 3rd test am I pregnant or is it just bleeding into the line? I’m not sure this is the first time this has happened to me. If I am we’d be happy about because we want our son to have a sibling. If I’m not it’s also okay. I’m anonymous because I have people I know on here.

Help a momma out