Pregnant symptom ?

Katie • 21
So I don't know how true it is but I was told a sign of pregnancy is having sore boobs. That being said are they only sore when you touch them? Or are they just sore, even when you don't press on them? Is it just kind of a soreness like oh that kind of hurts or is it like an annoying painful kind of sore? Like on a scale of 1-10? Sorry if this is weird to ask but I told my boyfriend today my boobs hurt and he's worried now. We have been working out once a week so I assumed it was because of that.