Lower bump and pelvic pain

sam

Has anyone experienced this, i am contracting my doctor tommrow but wondering if it could be SPD starting the lower part of my bump has been getting sore but it's now going towards my pubic area and inside of thighs I am only 24 weeks of only gained 6lbs I do have a bigger bump this time round but i put that down to 2nd pregancy, what's peoples experiences ( I am not seeking medical advice I will go to the doctors)