Ib or af 😩 also tmi

So had unprotected sex on the 20&21st of July on the 20th I ovulated later that day I got some slight bleeding thought nothing off it, 1week later instaet getting nausea, cramps, creamy brown discharge roll on till lastnight and it started again but af due today and I get this but it’s only when I’m wiping. Symptoms I’ve got are nausea, acid reflux, slight cramp to my left ovary, extreme fatigue and wanting to constantly eat. Took a hpt on Friday and got a bfn 😩 what does everyone think also tmi pictures