False positive?

I took a test on 5/31/20 when I was 8dpo. I decided to start testing that early because it was my partner’s birthday and I wanted to surprise him. Not thinking anything of it I got a faint positive!

And then I decided to take another and got another line!

Now I’m 9dpo and took more tests this morning that have come out negative

Were those false positives?? I have a lot of pressure in my lower abdomen but no other symptoms. I know it’s still early but those negatives made me quite disappointed. Thoughts?