Confused.

Okay so I was supposed to start my period Sunday, so today makes 3 days late. On Sunday night I took a test came up faint positive, since it’s been sitting you can see it now without having to squint lol. But I took another one yesterday morning and it’s faint. Those were blue dye tests. Last night and this morning I took first response rapid result tests. I accidentally grabbed the wrong ones 🙄 but I don’t see anything on them. Help.