I am 20 weeks 4 days pregnant. I had level 2 scan 3 days back , everything is fine. I had urine routine test also. The report is also fine. Ph is 6.5. My concern is that after every 4-5 days i have back cramps & stomach cramps. Intermittent cramps for complete day but bearable. This is happening from last 4 weeks. Earlier my gynac suggested to have Pan-D but I didn't think so it worked. The pain comes after every 4-5 days. It is like cramp which comes and go for 1-2 day then 4-5 days will be normal. Somewhat like period cramp. What are these pain? Any other test I should do or Is it normal?