35 weeks today...

So i have been havin BPPs and NSTs since 28 weeks and always had high fluid levels. 3 BPPs ago my fluid was at 26.9cm, then on Friday it was 19cm, now today it's at 10cm. It's declining and I still have 28 days until csection day. Not to mention he is estimated to weight 8lbs 3oz as of today. All this has me really nervous!!! Are there any other mommas going threw this?!?!