I had an ultrasound at 34w and have an AFI of 30cm. My OB didn't seem too concerned and had me get blood drawn to check my sugars over 3 months, but that came back "excellent". So there doesn't seem to be an apparent cause (which I know is common), but she did mention something I'm not sure I'm comfortable with regarding delivery. She said a lot of times they want to do a slow release of the waters to avoid placental abruption. I understand that abruption is a concern with this, but I have other concerns.
1) In my last labor (my first labor, 2nd pregnancy, VBAC) I didn't dialate until labor, so they won't be able to do an amniotomy with no dialation.
2) The baby didn't engage until I was almost pushing. I know this greatly increases risk of prolapsed cord.
3) I delivered at 42 weeks last time. I know there is a chance of going earlier with poly, and I have had BH contractions, which I did not in my last pregnancy.
4) I REALLY want and plan to have a natural, low intervention birth and I planned to do that with my waters intact. It also seems like a good idea to have CFM if this is the plan, which I know comes with a whole other set of pros and cons.
I really like my OB (she has delivered twice drug free) and she supports my birth plan. We do plan to keep an eye on the fluid and I know a lot could change in another few weeks even. I just want to know if this is really the best course of action for excessive fluid.