what do you think?

on march, I had my period during one day (is the first time in my whole life that this happens, normally I have it for 4-5 days) on april, I didn't have my period, just something pink but very little, on may I just had brown spotting one single day. pregnancy tests negative negative negative. today I see myself in a picture and I look pregnant. What do you think? I'm the one with the purple shirt