PMS or early pregnancy?!

Stephanie • Mother to a sweet baby girl born 14 October 2015 💗👑💗
Hi,
​I ovulated on 9/10 according to ClearBlue Digital Advanced OPK. I'm on three different apps and am getting three different dates for when AF is due: 9/24, 9/25 & 9/27. Today I have extremely sore breasts and have had a very full feeling in my lower left abdomen for the past 2 or 3 days. Is a week or more before AF too early for PMS symptoms?? I've never paid this much attention before TTC, so I honestly don't recall when I usually started getting PMS symptoms.  Thank you in advance. :)