Effect of New Specialized Technique Using Effleurage Massage on Striae Gravidarum

This study will be conducted to investigate if our new specialized technique using effleurage massage can prevent or even decrease the severity of striae gravidarum in primigravida . Participants will: perform effleurage massage in transverse direction from medial to lateral only not back and forth, twice a day starting from the 17th week until the 28th week of pregnancy and three times a day starting from the 28th week of pregnancy for 10 minutes for each time until date of birth but from lateral to medial. It will be performed on the whole abdominal area extending from the diaphragm to the pupic area, also on both sides of the abdomen extending from the 12th rib to the iliac crest.