Sometimes left side pain is just gas or indigestion, which was very common during my GD diet phase. But if the pain is sharp or continuous, please don't take it lightly. Check with your doctor to rule out any serious complications immediately.
I know exactly how terrifying every single ache can feel, I used to panic at every small pain. Left side pain can sometimes just be muscle stretching or gas, but your peace of mind is most important. Please call your doctor and ask, it’s completely okay to check for safety.
Look, mild stretching pain is normal as the baby grows, but persistent left-side pain is not something to ignore. If it is severe, sharp, or accompanied by spotting, go to your doctor immediately. Don't sit and wait for it to go away on its own.
Actually, I had terrible left side cramps once and it turned out to be severe bloating from all the pani puri I craved! But my doc said any sharp pain shouldn't be ignored, so I got checked first. Drink lots of water and check with your doc if it doesn't get better.
It could be round ligament pain as your uterus stretches, or simple constipation. However, left side pain should always be evaluated to rule out any ectopic issues or urinary tract infections. Talk to your gynac and describe the intensity of the pain so they can guide you.