The researcher will show husbands how to give endorphin massage to their pregnant wives. Additionally, they will be asked to choose one of three different instrumental relaxation music pieces played without lyrics to help them relax, and the chosen music will be sent to the pregnant women via WhatsApp. They will be instructed to play the music while performing the endorphin massage. Husbands of pregnant women in the experimental group will be asked to apply a total of 20 minutes of endorphin massage within 1 hour, divided into two sessions of 10 minutes each.

They will receive routine nursing care.

The person who will perform the endorphin massage opens his hands with his palms facing himself and draws a semicircle with the nails of his middle, ring and little fingers touching the sacrum. Then, a semicircle is drawn with the fingertips from each side of the spine, starting from the sacrum to the shoulder area, towards the waist area, As a result of this process, a palm shape is drawn on the back. Effleurage is applied from the shoulders to the arms up to the elbows. Effleurage is applied towards the shoulders by pressing from the elbows upwards with the back of the thumb. Effleurage is applied up to the sacrum by pressing circular movements with two thumbs on both sides of the spine. Effleurage is applied from the sacrum to the neck by pressing with two thumbs in a circular motion on both sides of the spine (approximately 1.5 cm apart). Lastly, effleurage is applied to the neck area and scalp, then petrissage (rubbing) is applied and the massage is completed.

VAS is preferred to convert some values that cannot be measured numerically into numerical values. VAS, which is a simple, effective, repeatable pain intensity measurement method that requires minimal tools, provides rapid measurement of pain intensity under clinical and laboratory conditions. There are studies in which VAS is used to evaluate pain in prenatal patients. In VAS, the patient is asked to make a mark on a 10 cm horizontal line that shows his current situation. In this study, for pain; Markings are made on a 10 cm horizontal line, one end of which indicates that the patient's pain is very good (0 = no pain), and the other end indicates that the patient's pain is very bad (10 = the most severe). The length of the distance from the point where there is no pain (0) to the point marked by the patient shows the patient's pain intensity.

It is used to determine state and trait anxiety levels in individuals. State-Trait Anxiety Scale consists of a total of 40 items, 20 items each. The State Anxiety Scale requires the individual to describe how he or she feels at a particular moment and under certain circumstances. The total score of the scale varies between 20-80. A high score from the scale indicates a high level of anxiety, and a low score indicates a low level of anxiety.

A high cortisol level indicates high stress, while a low level indicates low stress. Since cortisol levels follow a circadian rhythm, the timing of evaluation is crucial. Therefore, the first assessment in the study was conducted at 08:00, and the final evaluation was performed at 09:00.