I’ve had one before but I think it was during my period 3 years ago. I’m in pain, it feels like when I had one and my period is 9 days late with negative test. I also wake up sick in the mornings, cramping down there, I don’t even cramp on my period, and I feel constipated and sometimes light headed. I’m 20 and never missed, or had an irregular period in my life so I am extremely scared. Me and my bf broke up but I don’t think I’m stressed to miss it. I’ve had more things happen to me and still got my period.