Definitely. Intercessory prayer, like all prayer, is powerful, but with more people praying, it not only gives one peace of mind but really does help. An example would be my nephew, who was born three months early. His mother however, (my sister) had her water break at about 23 weeks, which is a TERRIBLE time for it to happen, and it was only by the grace of God and lots of prayers that they were able to kepp the baby inside her womb for as long as they did.