Why do pregnancy and period symptoms have to be so similar?!

Stephanie

I'm 12 DPO. I'm on CD 24. This app says my period should start today but I think that's a bit early but my cycles have been off the last couple months due to some supplements I'm on. Before they were 26 days, then in june it was 24 then last month it was 28 days so who knows... but it's possible for implantation bleeding at this point, isn't it??🤷 My boobs have been sore for about a week, my acne has been awful and last week I got super nauseous for a couple minutes (which is what happened last time I got pregnant). I took a test yesterday and it was negative and then last night I got the slightest bit of light pink on the TP when I wiped and now today it's a bit darker almost brownish color but only when I wipe. This isn't really typical for my cycle if it would be my period. If it's implantation, how soon could I test??