Feeling.... off?

So I got my af as scheduled been off for a week almost and it seemed normal but I'm feeling nauseous and very emotional (I wanted to cry at work because family meal was gone by the time I got a chance to eat). Tmi I have also been extremely constipated. I think I had ovulation pains but my cervix is already dropped down like af is coming. My mom said with me and my brother she continued to have periods so I'm questioning if maybe I'm pregnant. Should I test?