My friend had protected sex two months ago. After 8 days, she felt pain in lower abdominal for that reason she did an ultrasound during ovulation time which shows minimal pod fluid and everything is ok other than that. After that she had a full flow of periods after last intercourse and no intercourse after last period. She is generally get her periods on time, but this month, she is not getting her periods, it's already 6 days late.. She is feeling PMS symptoms like lower back pain and little cramps but period is not coming. What is the reason? Is there any chance of pregnancy ? She also did home
pregnancy test twice during her last period but it was negative.