Thanks for your opinions . I ended up taking the placenta pills yesterday around lunch time, and after another morning of miserable mood they seemed to kick in fairly quickly and have been feeling energetic and positive ever since (like magic! Or an out of this world amazing placebo effect, whatever you want to call it).

Had another night of prelabour contractions last night that lasted for two to three hours and appeared to be increasing in intensity but then subsided again. And my mood was so good I didn't even care, and am currently feeling happy waiting for active labour to kick in.