Last month my period was shorter & lighter, not a lot but definitely noticeable for me. The past weeks I ve been dizzy, nauseous, headache, extremely tired, frequently going #2 & moody. My period started today, 4 days early, it is usually really heavy but I have only used one tampon, & it barely had any blood on it. I am basically only bleeding when I wipe. Should I take a pregnancy test?