Early PMS or Pregnancy symptoms ?

I know that’s it’s really early to tell anything, as my expected period isn’t until September 1st. But I had very watery CM the 13th and 14th and had sex both days. I use Premom app to track my OPKs and it predicted that my peak was the 17th. I’ve been feeling so moody the past few days and very bloated, my CM looks watery. Sorry for the bad pic quality.

Literally every little thing has been annoying me and I have been feeling so stressed and anxious. I normally get really moody like this when I am PMSing.