Too early for pregnancy symptoms?

So this may be tmi but I am 5dpo and for the last 3 days I have had several bowel movements a day and have been waking up feeling like my bladder is going to explode. These are the only things making me wonder if I might actually be pregnant. The rest of the time I don't feel any different. But the only time I've ever had the bladder thing was with my last pregnancy, but I don't remember it starting this early.