Is it underneath, kind of between your pubic bone and even with your vaginal opening? If so, it's probably where one of your pelvic floor ligaments attaches to the front of your pelvis. My LMT/backup doula found that spot on me and worked on it for a while because it's tight. And when I started sitting on my exercise ball more, it started to HURT. I felt like I had to walk with my foot splayed out to the side.
If you can find the tender source of that pain right on the bone and gently massage it, you'll get some relief.
8g, 7g, 4b, 2g