OMG this is pregnant me. 
I recently had what I christened a 'trauma poo'. It was 2:30pm on a Saturday, we had the two cats due at a vet appointment at 3:00pm. I nip to the loo for a quick poo - no warning whatsoever what is about to happen - while DH locates the cat boxes and the cats.
And then... the fucker gets stuck, halfway in, halfway out. I start sweating and panicking - this has NEVER happened before. I wriggle around to see if I can dislodge it, this buuurns. I clench to see if I can pinch it in half somehow? NO, no, no, let's not do that again. I stand up, for some reason believing this will help - NO THATS MADE IT WORSE.
Meanwhile DH is getting cross and calling me as it is now 20 to and we're going to be late, and I've left him alone trying to get two claw happy angry cats into their cat boxes. I am sweating, hyperventilating, wondering if it is possible to shit yourself in half. DH still calling me, getting more and more annoyed.
Eventually, I gather my courage and push it out. Shakily get myself together. It's quarter to, cats not in boxes, we're going to be late. It is enormous. I flush, toilet floods then water goes down, I nearly weep. I flush again, same result.
I leave it there, say nothing to narky-arse and scratched DH, cats are inserted in boxes and we get to the vets in record time. I only confess about the trauma poo in the waiting room - cry laughing, then come back and have to break the fucker up with a stick from the garden.
ISN'T PREGNANCY WONDERFUL? AH, THE MIRACLE OF LIFE.