Hi mama! Honestly, it's hard to say for sure based on timing alone kasi breakthrough bleeding happens sometimes, lalo na if may sudden activity, pero because this is about pregnancy risk, best talaga to check with your OB para sa peace of mind, even just a quick call or text. A few of us mums have been in similar situations and ang dami ng factors na pwedeng mag-affect sa flow, pero yung doctor lang talaga ang makakapag-confirm properly with a test if needed. Wishing you clarity soon, mama!