Anak, please see your OB-GYN right away or go to the nearest clinic para ma-check properly, pain down there during pregnancy needs professional eyes, especially at 22 weeks. A few of us mums have experienced different things during pregnancy, and honestly, it's always better to have it looked at than to worry alone. Your doctor will know exactly what's normal and what needs attention, kaya don't hesitate to call or visit today. Take care of yourself, ha!