Period but pregnant?

Normal periods are 7-8 days long... this one was only 3 days. Flow & color were like a normal period but just stopped on day 3? WTH?

My boobs were extremely sore for 10 days leading up to the period (normally only 2 days before) but now they’re not at all.

Anyone else experience something similar? I’m hesitant on a test because I don’t want to waste it lol.