Thanks for writing in.
If urine tests and abdominal ultrasound
came back as normal, most likely the kidneys and the renal system are doing ok.
Before you got pregnant , if you got this kind of pain monthly alternating between your right and left side of lower abdomen, this could mean ovulation pain/mittelschmerz
pain. This is quite common in a few percentage of women.
Another possibility is pockets of gas trapped in the bowels causing pain. In which case , follow a good diet, and have warm water to drink at regular intervals. Avoid food which make you feel bloated.
Now that you are pregnant , and if you do experience crampy abdominal pain
or vaginal bleeding, you need to see your gynaecologist as soon as possible.
Hope this helps.
Dr. Divya Kuttikrishnan