What do you think??

AF came 3 days late. Started with what seemed to be a normal flow on day one. Lightened on day 2 and nothing on day 3. Usually I am pretty heavy the first few days then lighten up then spot for a day or so. About 5-6 days is a normal cycle length for me. Could I be pregnant? I am super bloated and my boobs just seem bigger lately. Should I test? Any opinions are appreciated!! We've been trying for almost a year and still nothing exciting happening for us.