Does any body see anything and advice

Dpo have a 26/27 day cycle and I'm on 6/7 dpo according to my two <a href="">period apps</a> 
Today I took frer test and it looks negative but the ept looks slightly different. 
I also have back pain tmi loose stool and only the right nipple hurts. 
Top on ept
Second one is the frer non curved stick 
Last one is the curved stick frer
Any advice