IRCT201403013706N22 IRCT 2014-04-04 Research deputy of Tabriz University of Medical Sciences The effect of a pelvic floor muscle exercise program on sexual function of women during pregnancy and after delivery The effect of a pelvic floor muscle exercise program on sexual function of women during pregnancy and after delivery: a randomized controlled trial 2014-04-10 anticipated 84 Complete https://irct.ir/trial/3813 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention, Other design features: Only outcome assessor will be blinded. N/A Maternal diseases. Intervention 1: Intervention group: Pelvic floor exercises will be done twice a day; 8-12 set of contractions at each time, every set includes a strong contraction with a maximum possible power holding for 6-8 seconds followed by 3 or 4 contractions in shorter period, with a 10-seconds resting after each contraction. The treatment group will get practical and written education about the exercises at the recruitment day. Accuracy of the exercise performance will be checked at different positions at three about 30-minutes meetings held at 22-24, 28-30, 34-36 weeks of gestation. Also, telephone follow-up will be done weekly in the first month and every other week afterwards. Intervention 2: Control group will receive regular care and will get education on personal hygiene and care of the newborn at one session at 28- 30 weeks of gestation.