Sore breast?

Tabatha • I`m married to my high school sweetheart. We have two beautiful daughters.
I'm having all kinds of pregnancy symptoms. I haven't tested positive yet, but I'm having strange boob pain. Most people say when your pregnant your boobs will be sore. Mine never was with my first, they just hurt here & there. If you breast fed your baby then you know the feeling behind your nipple when your boobs were full of milk.. That's how mine feel now. Is that strange? Or is that considered sore breast?