Should I test again?

This is kind of a long post but bear with me! I am TTC and my period was due August 4 but I spotted (beginning light pink then getting darker) for 5ish days. The spotting began July 31. I had some cramping that I had NEVER experienced- it was very localized in my lower right side. I took a FRER the day AF was supposed to come (August 4) but got a negative. I’m supposed to be ovulating soon this month but don’t feel like I usually do around time of ovulation. I’m also having some minor cramping. Should I take another pregnancy test?