Is it an early symptom or what's going on?

So I'm about a little over a week late and I've been experiencing this weird feeling in my stomach just today. I always cramp before I start but this doesn't feel like a menstrual cramp, it's a lot milder. It doesn't necessarily hurt but it just feels like a little tugging inside. Also, I never really get tender breast before or during my cycle but I've notice the past two days my side top boobs are a little sore feeling.