Needing advice about pain

Dana

So I’m 17 weeks and 3 days. This is my 3rd pregnancy and I’m experiencing sharp pains in my vagina that goes up into my right ovary area. I do not remember this pain with my other two pregnancies and the 2nd was twins. The time I noticed it was when I started thinning and dilating. I’ve also had a green mucus discharge off and on. Is this normal pain for this stage or should I get checked? With my oldest I started thinning and dilating around 35 weeks made it to 38. My twins my cervix shortened at 23 weeks and I started dilating around 25 had them at 31. Baby is pretty low from what I can tell. Any advice or experiences is appreciated thanks!