WTH...

according to this app I ovulated on the 15th of june. on the 28th I started spotting, so I assumed that I was starting my period(very disappointed btw). on the 29th I realized that I got light headed and nauseous in the afternoon. I just chalked up to my period. well today I realized that there has been no clots. just discharge and blood. also, no clots or cramping. it's so weird. also no bloating. I normally bloat like crazy during my period.

so I started reading and I think it's too heavy of a flow for it to be implantation but it's too light to be my period. what should I do now?