Hi dear. I am also 32 weeks pregnant. Since the baby size is getting bigger , there won't be much space in the womb for the baby to move inside. So that is the reason for the decreased movement. Even though there should be some movement of the baby in Every 1-2 hours. Pelvic pain is due to the widening of your pelvic area and that is the part of labour preparations of your body. Still if it is more please consult your doctor. Good Day !