Implantation?

Katie

ok so my ovulation day was March 25 my SO and I had sex on that day as well as 2 days before and 2 days after. On the 30 I had some brown spotting discharge that I disnt even need a pad for. Well today on April 1 I had just slightly more brown discharge. Just enough to wipe and be done with it. My period is still a week away. Ever since the 30th when I first spotted I have been tired and hungry all of the time. And today I'm slightly cramping but not enough to really notice and i have a headache. Could this all be implantation? I have never spotted like this before. The first picture is from today April 1. The second is from the spotting on March 30