No, it's not critical: otherwise I'd already be in L&D. Unresolved unilateral leg pain that came on Thursday, is minimally relieved by analgesics, and is NOT a DVT. Or if it is, it's a very atypical one because I have no other signs of a possible clot: leg color matches the other, not warm to the touch, not swollen, and a negative Homan's sign (though we all know how reliable that is when it comes to predicting clots).
So I put in a call and now I'm waiting.