Before starting the study for the Control Group, the participants were informed about the research and their consent will be obtained. Afterwards, evaluation surveys will be applied. They will be asked not to participate in any regular exercise for 8 weeks. At the end of 8 weeks, re-evaluation surveys will be applied.

After people fill out the evaluation questionnaires, they will watch the video recording of pilates based exercises via the link sent to them via Google Drive, and they will be applied twice a week for 8 weeks. All exercises in the video recording will be explained in written, applied and verbal form by the physiotherapist, and they will be asked to practice. Every week, feedback will be received from people that they have done the exercises via their contact numbers. The average application time of the exercises is 30-40 minutes (with the first 10 minutes of warming up and the last 5 minutes of stretching). Participants will be asked to open the video recording each time they exercise and follow them to do the exercises. At the end of 8 weeks, re-evaluation surveys will be applied.

The average application time of the exercises is 30-40 minutes (with the first 10 minutes of warming up and the last 5 minutes of stretching). The first four exercises were used for the warm-up period and the last four exercises were used for the stretching period. The exercises will be done as 1 set of 8 repetitions. The Hundred exercise will be increased to 10 sets of 10 reps every two weeks to 10 reps, 12 reps, and 14 reps, respectively. Participants will be asked to open the video recording each time they exercise and follow them to do the exercises.

Exercise Program:

• Arm Circles
• Toe Touch
• bridge
• Shoulder Bridge
• Chest Lift
• Hundred
• Roll Up
• Leg Circles
• Chris Cross
• Side Kick
• Side Leg Circles
• one leg kick
• double leg kick
• Swan
• Single leg Stretch
• Double leg Stretch
• saw
• Spine Stretch

PMSS is a 44-item five-point Likert-type scale (Never, Rarely, Sometimes, Often, and Continuous). As stated in the instruction at the beginning of the scale, after the item is read, marking is made by taking into account the scale on the right of the relevant item, according to the "being in the period one week before the period". In scoring the scale, "Never" option is evaluated as 1 point, "Very little" option as 2 points, "Sometimes" option as 3 points, "Often" option as 4 points and "Constantly" option as 5 points. the high score is 220. In addition, PMSS severity classes can be created according to the scores obtained from the scale. Accordingly, a score of 88 and above from the PMSS scale total indicates severe PMS symptoms, and a score below 88 indicates mild premenstrual syndrome symptoms.

The perceived stress scale consists of 14 five-point Likert type items. The scale consists of "never (0), almost never" (1), "sometimes" (2), "often" (3) "very often" (4). In this 14-item form, items 4-5-6-7-9-10 and 13 are scored in reverse. The lowest and highest scores that the participant can obtain from this scale are 0 and 56, respectively. A high total score means a high Perceived Stress Level Scale. It can be said that the participants, whose score range is between 0-35, are in a positive stress level, can effectively cope with stress, and the coping mechanisms they use are also functional. It can be said that the methods used by the participants with a score range of 36-56 to cope with stress are not functional, and therefore they cannot cope with stress effectively.

MPQ consists of four parts. In the first part, the patient is asked to mark the location of the pain on the body chart and to indicate with the letter 'D' if the pain is deep and 'Y' on the body surface. In the second part, the patient is asked what he compares his pain to. There are 20 word groups with 2 to 6 descriptive words that describe pain in terms of sensory, perceptual and evaluation. The first 10 groups of words include the sensory dimension, the next 5 the perceptual dimension, the 16th group evaluation, and the last 4 groups of multifaceted words that indicate different aspects of pain. In the third part, the relationship of pain with time is asked. In addition, it is asked what reduces pain and what increases it. In the fourth chapter; The patient is asked questions to determine the severity of pain. Evaluation is made on a rating scale consisting of words describing the severity of pain.