Implantation bleeding?

Hello! So I’m kind of confused. On Sunday night I started spotting very light pink only when I wiped and barley any. And on Monday my “period” started at around 3pm then it ended Tuesday night completely. So basically my period lasted a day and a half. Then today (Friday) I went to the bathroom at around 7pm and when I wiped it was super super light pink and just like a few dots. I took a pregnancy test this morning but I’m not sure if it’s an indent line or not, I’m just confused. I never get any spotting after my period and my period usually lasts 3-4 days. Any advice would be helpful!