Can’t wrap my brain around this…did I have a chemical? False positive? Birth control?

I know I’ve posted my pictures a few times over the past few days but I still can’t wrap my brain around this at all. I got off of birth control 3 weeks ago and ever since then I’ve been having unprotected, I took a clearblue 2 days before my period and received a vvfl, I waited 2 more days and got this result I’ll post below.

So at this point I’m crying, excited, scared, making plans with my SO. Now here I am 3 days late on my period and I’ve had 3 tests with faint lines like that and so many symptoms like bloating, moody, nausea, cramping all the same symptoms I had with my daughter but when I test with first response I’m testing negative. I’m so sad, mad, confused.