A matter of when

As I am advancing in my pregnancy, and as my tummy gets bigger and heavier, I also experience more and more discomfort and the "freebies" of pregnancy, such as:
- lower back pain
- sleepless nights
- waking up 2-3x a night to pee
- sciatic nerve compression causing me difficulty in walking
- Braxton Hicks (false contractions)

Of course with these symptoms, it is increasingly difficult for me to continue working, since I am required to walk and move around alot at work and carry/squat/bend alot too.
Not to mention, my obstetrician did warn that if I experience strong contractions again I might need to be hospitalised and be put on a drip to delay labour.
That thought alone scares me so much :(

Andy urged me to clear leave and take 1 month's no-pay leave all the way till delivery then start my m-leave. Though it sounds like a great idea to spend 6 mths in a stretch at home, but then I am quite hesitant also.

First of all, I will miss having an income. Andy told me he would support us and give me an allowance so "dont worry" but then there are so many things I plan to buy for Baby and I would feel greater satisfaction if the $$ came out of my pocket instead of hubby's.
I never like the idea of having to ask for $$ because makes me feel so useless and inadequate.

Secondly, without work, I will have nothing to do at home 'cept look at 4 walls and talk to the dogs.

I planned to work as long as possible and save my precious leave but pregnancy is such an unpredictable process. Sigh..
Should I or should I not take a rest??