My period comes on every 19 to 20 days it was supposed to come on on the 1st but glo said on the 4th but for the last 2 years my period has come on on every 19 days I've taken 2 test both negative and there are no signs of my period coming on when I was going through ovulation I felt so much pain for the first 3 days I had a fever in my back with all the pain then after those 3 days I felt my cervix cramping like my period was coming on and at night I was hurting so bad and it felt like my period was on so I went to the bathroom to put a pad on and there was no blood but I was extremely wet in between my legs