how likely are you to get a Evap or indent on a first response? 😪😥

So I took a test this morning, didn't see 2 line so I thought nothing of it and left it on the counter in the bathroom, I come back 10mins later and there's a tiny pink line, not the same size as the control line but it's there.. is this an Evap? Or my BFP?! its really hard to take a photo because for some reason it won't show in the photo.. but has anyone ever had this happen and actually ended up pregnant? 😥😥anything is helpful xxxx