IUD Pain? Or Something Else?

katie • 23. fashion stylist. dog mom. single. Christ follower. 💕
Last night I started experiencing random sharp pain in my lower abdomen on my right side (my right, left if you're facing me) it stopped but this evening it started again, and now the pain is just dull. I sat in the hot tub for about 45 minutes but that did not help...Could this be pain from my IUD (inserted 3.5 months ago) or something completely different? Any input or advice is greatly appreciated!!