19 weeks severe stomach pain

Hi mummies! I’m 19w 3d to be exact today & i’ve been feeling SUPER SHARP PAIN on the lower right side of my stomach only, it has been going on for 3 days straight now. The pain come & go every 6-8 hours, even while I’m sleeping. I felt abdominal pain before since 15 weeks that come & go (i know that temporary feeling) but it doesn’t hurt as much as the one I’m feeling right now. It hurts soo badly every time I try to change to a different sleeping position or when I’m sitting down. I’m worried if anything is happening. what could it be? #advicepls #pleasehelp This is my first pregnancy…