I am really regular with my period start dates . I'm usually between 27 or 28 days between my periods . But lately I've had some cramping but no blood . I was supposed to start today . But I haven't . And at night I've been very nauseated . My last pregnancy was when I was 19. I am now 35. Usually when my period starts I have some cramping . But nothing to bad . I just take some midiol and I'm fine and the cramping goes away . But this time the midol isn't working and I have this constant cramping in my lower abdomen . It's not sever but just really annoying . Like I have to have a bowel movement . Sorry for being so in depth . But I'm just looking for some answers or suggestions . Thank you .