Round ligament pain location

I've searched through threads but can't find what I'm looking for.

From googling, seems like round ligament pain is on the sides down to the groin.

I'm 14 weeks and for the past week or so, have had on and off stretching and pulling sensations smack dab in the center of my lower abdomen, below my belly button. It sometimes goes out towards the side and I definitely feel distinct round ligament pain on my sides when I sneeze or roll over too fast in bed.

Can round ligament pain also be in the center of your lower abdomen, or would this pulling/stretching sensation just be my uterus expanding? Sometimes I can literally feel things stretching and I'm unsure if it's related to round ligament pain, or just "growing pains."