I am 21 weeks pregnant. My back hurts. I am knackered. I run a business and have been rushed off my feet all day, then have had to look after 5 year old dd and her friend who are having a sleepover, waiting on them hand and foor (kitchen is in basement, they are 4 floors up so no easy task). I also walked the dogs in the pissing rain, took the cats to the vets so they could have their nuts cut off. And now DP (who has done very little today) is hassling me for sex. I would rather eat wasps. I have told him to jog on.