I think im pregnant

Liz
So last monday 8/17 i started spotting really light pink and just once that day. According to glow My period was due this monday 8/24 . Since my last one was on 7/27. I still haven't gotten it, and i'm regular, 28 day cycle. Yesterday 8/26 i spotted a little bit you could hardly see it and light pink again. I couldn't eat anything yesterday because i felt sick. I have been feeling sick and tired. My breasts are sore too. I also have a runny nose. I haven't tested yet. Help ?