Bumpy cervix

I had a baby a year ago and am now In the midst of <a href="https://glowing.com/glow-fertility-program">ivf</a> and taking prometrium vaginally 3 times a day. When i put it in this morning i noticed a tiny hard bumpy ridge at The side of the opening of my cervix. I had a hysteroscopy a couple months ago and a transvaginal ultrasound last week and no one mentioned seeing anything. Ive had 3 previous vaginal deliveries and it almost feels like a bit of scar tissue….. my last baby came super fast (from 4cm to out in 5 mins) so I’m wondering if I’ve torn something. I’m assuming since I’ve had a hysteroscopy and transvaginal ultrasound in the last month that if it was anything sinister it would have shown up on that? I’m not due for another pap for a year as well (never had any issues there). Any advice?