My husband and I have been ttc for a few months and had no luck but my last period was July 17th and it lasted for 5 days and I have not started again yet. Usually I'm pretty much on schedule every month and it is always heavy and painful. Well the 16-17th of august I cramped extremely lightly and spotted very lightly. Honestly I thought it was implantation but all my hpt have came back negative.. I'm going to the doctor sometime this week but I just wanted to see if anyone had any opinions on what is going on.