Ay hirap sabihin talaga without seeing it, but at 37 weeks 5 days you're definitely in the window na pwedeng lumabas anytime! Kung it's a thick, jelly-like discharge (sometimes with a bit of blood or brownish tint), baka yes na, but kung normal discharge lang na slightly heavier, hindi pa siguro, a few of us moms got confused kasi ang dami ng discharge towards the end talaga. Best bet is message your OB or go in for a quick check para ma-confirm, kasi they can tell right away, at least you'll have peace of mind na alam mo na what's happening sa body mo!