Sleeping position

Pain on your left side during pregnancy can happen for a few reasons - ligament stretching, round ligament pain, or sometimes just the way baby's sitting - but it's worth checking with your PD or gynae to make sure everything's okay, especially since you're only 12 weeks in. In the meantime, try sleeping on your right side or using a pregnancy pillow to take pressure off that area, and see if that feels better for you. Every pregnancy is different, so what works for one mum might not work for another, but your doctor will be able to give you proper peace of mind about what's causing it.

it would be better if you seek your gyne opinion.