Relle, i dont know if this helps but i had tightening for a few days before I went into labour. Its hard because everyones body does different things and every pregnancy is different so your at a no win win situation really.

Try not to think about it, Lol. I did that to and things started. Coincedance (s) i dont know but i think because i was less stressed and relaxed she must of thought 'ok, i come now, ive put you through enough' lol.

Im telling you when they start you will soon think, oh crap here we go again. And then when you pushing that painful head out again your thinking 'why am i doing this again'.
Good luck with it all anyway but you cant rush perfection.