i'm 18+ weeks pregnant with my second baby; dd is 4 in january. has anyone got any useful advice / experience / tips ? .. my dp is currently not with us for reasons i wont go into so i'm doing the pregnancy alone and also looking after dd.. i'm just finding the tiredness almost unbearable! i work and i'm doing the house on my own (dp used to be brilliant at tidying and washing up) and coping with all the emotional stuff too.. just can't ever seem to catch up on enough rest and yet when i lie down to sleep at night i can't get to sleep.. any practical suggestions welcome