Stretching/pain 17 weeks

Last couple of weeks been feeling a stretching pain near the lower left side of my groin that extends to upper thigh area on the inner side. I'm sure its normal but wondering what exactly it is. Sometimes it hurts more than other times. Is this just normal stretching in this area... anyone else experiencing this?

Here's a pic of the location of where the stretching/pain I've been feeling... 🤔 It sorta starts in the crease of groin on that side. Thanks!