As soon as I find out I am pregnant, i plan to work all the way up to the birth, I have quite an easy job and its all computer related etc so it shouldnt pose too much of a problem.
I am going to stop any holidays i have booked and cancel them and build up all my holidays, so when i do decide to go on maternity leave il book all my holidays off first then after there finished then take my maternity leave...... (All the girls at work who are or have been pregnant do this where i work), so usually you get about 9 1/2 maybe even 10 1/2 months paid leave.