TTC & tummy cramps, am I over thinking it?

I've been testing for peak ovulation for 8days & haven't gotten a positive test yet, just a blinking smiley face for "fertile" every day. But nontheless been doing the BD every other day with hubs this month. Yesterday & today I've been experiencing mild stomach cramping/fluttering. Could this be an early sign of implementation? I'm about 1.5weeks out from when my period should start & I'm usually pretty regular so I don't think it's coming this early. Am I over thinking these signs? Could it be too early to even tell? Some days I think I just wanna be preggo so badly that I'm just being crazy!