Hello dear, Thank you for your question. In my opinion, given your delay of one week, you should consider taking a pregnancy test, if you recently have had sexual intercourse. The pain in the left side of your lower abdomen would make me think would make me think of a cyst in your left ovary. The presence of the cyst can be confirmed by an ultrasound performed by an ob-gyn specialist. I would suspect Polycystic ovary syndrome (PCOS) in the presence of one or more of the following: 1-oligoovulation and/or anovulation (decreased and/or absent ovulation ) You can easily assess this process by measuring your body temperature early in the morning, (possibly at the same hour) during the entire menstrual cycle. The first day of the menstrual cycle is the day your period starts, while the last day is the day before your next period. If you find your body temperature to be elevated approx. with 0.5°C, during the second half of the cycle, that is a sign of present ovulation. 2-excess androgen activity. Androgens are normally present in women, but excessive activity usually causes visible changes in the women s body. Such changes include: hair in areas you wouldn t normally expect to find in women (ie chest, face), hair loss above the forehead, a masculine voice, weight gain, acne etc. 3-polycystic ovaries (by gynecologic ultrasound). You need an ultrasound performed by an ob-gyn specialist in order to confirm this condition. From your description, it doesn t look like you would meet the criteria for PCOS. But if you find yourself in any of the criteria I mentioned above, I think you should visit your gynecologist. I hope this helped. If you have further questions, don t hesitate to contact me. All the best. Dr. Alma