I have had three miscarriages. My periods use to be all over the place, but they became set on the 13th for several months. Then I was exactly 35 days late when my period came. After that my periods started coming on the 20th. I got a faint positive on a pregnancy test during that time when I was late. (I m unsure if that was the forth miscarriage or not) so the past three months my period has been coming on the 20th. Today I found a light pink cervical mucus in my underwear, but no period. I was cramping a week ago, but today I should have started my period. My breast are sore other than that there are no other signs my period is coming. Am I having miscarriages because my body isn t healthy? Also why am I missing my periods randomly? Im 19 years old and me and my fiancé have been trying, but I m afraid I ll never have kids is this normal for a female my age to have so many menstral problems? Could my lack of sleep be causeing the problems with my menstral cycle?