I'm so sorry ladies, best not read on if you are eating....
Just spoke to my midwife as after going to the loo for a No. 2, I looked down to see the bowl spattered in blood (bright red, no clots) and freaked out a bit. Was also concerned that am having to work very hard to go to the loo at the moment, and A) it bloody HURTS and B) I thought I may push the baby out!!! 
I know the blood was definately from the back not the front, and she has advised Lactulose (yuk) and to keep and eye on things, but she wasn't too concerned.
This is my second and I didn't get constipated last time, I'm sure (but it was 8 years ago so may I have blanked it from my mind!)
Anyone else dreading loo visits at the moment?