Could I be pregnant?

My period was a week late, and I've had it for three days now but I've barely bled the whole time which is absolutely not normal for me. I've also been nauseous the past two weeks, my boobs hurt, and very light cramps as opposed to the bad, hunched over in pain cramps I normally get with my period. Should I take a pregnancy test, call the dr? Kind of thrown off by this... trying to get pregnant but just started trying this past month. I'm open to hear any similar stories or suggestions! Thanks everyone.