Signs a BFP is coming?

Sorry if this is TMI! This morning as soon as I woke up I had to go to the bathroom (#2) which is not normal at all for me. My stomach isn't upset or anything just had to go. Then I've been having minor what feels like pms cramping today. AF is due 7/25 and I did have sex on what glow predicted was my ovulation day. Could it be implantation or a sign I will get a BFP?