Honestly, it depends on the cat, but most vets don't recommend that cats are
bred until they're at least a year old. Any younger and they're not finished
developing and it can be very hard on their system.
I would recommend that you get her to the vet to be spayed ASAP. She'll be
much healthier, in the long run.

Duh - the fact that you are wondering about getting her spayed is
evidence enough that it is dangerous.

WTF will you do with her litter?  Raise them?

Whatever you do, please don't give them to PETA

Yes of course, it can be dangerous.
It is still a baby cat.
Read  this website all about pregnancy and kittens
http://www.geocities.com/turbo502002/index-en.html

Dicky

Emma, I read your e-mail and really felt for you, how worrying it must be to
be in that position.  I was however horrified at the response you received
from this group.  There was very little helpful advice given, just a lot of
abuse hurled and sanctimonious criticism.  You obviously do care about your
cat or you wouldn't even have gone to the trouble of posting on here.  I
spoke to someone recently who was lecturing all who came to visit on the
perils of cats being given collars or ever being allowed outside the house.
She cares passionately about her cats, and is unmoveable in her opinions,
but we certainly don't agree on what is best.

For instance I always provide my cats with collars, with safety elastic of
course, and it has saved their lives in the past (one of mine escaped at the
front whilst I was away on holidays - and became confused and lost.  She was
returned by a resident only a street away, who had spotted her sleeping and
foraging in their log shed, looking very thin and hungry - she was quite an
elderly cat.)  Thanks to identification on her collar she was brought back
to us safely (thank goodness)and recovered fully.

As for letting cats outdoors, I think it very much depends on the situation
involved.  I have a large catproof garden (tried and tested for many years
now, also intended to keep others out as best possible) and all my cats have
always been 'people' cats, preferring to hang around with us most of the
time.  However, the greatest pleasures they seem to get are when they are
springing about like lambs in the garden, catching flies, pouncing at moths,
climbing trees, sunbathing, eating at grass, sharpening claws, just running
for the joy of it even - to deny that to my cats for the rest of their lives
would feel like a cruelty.  Yes, they may be more 'safe' indoors, but they
have less well developed muscles, greater tendency towards obesity, poorer
circulation and a reduced immune system if they are strictly 'indoor only'.
None of us would dream of keeping our children indoors only for the rest of
their lives just to be sure they were 'safe', and yet they are the most
precious things we have!! Having said all that, many years ago I lived in a
house near to a main road with a small garden that was impossible to fully
enclose, and then the outdoors was only ever a fully supervised treat.
Unrestricted outdoor access there would have been a potential death
sentence.

My point is, everyone has their own personal opinion on what is best for
their pets, and individual circumstances, being judgemental rather than
helpful to one who is seeking advice is counterproductive.  No-one here
knows your personal circumstances and there are many reasons why this may
have happened ;    waiting for her to come off heat before getting her
spayed, only owning the cat for a very short while, severe financial
problems, intending to breed from her later, poor advice given to you etc..
either way, the cat is pregnant, and the best that can be done (assuming
there is no cruelty or serious neglect involved) is to offer helpful and
non-judgemental advice.  The criticism not only deters others from asking a
question 'just in case they are blamed' for the problem, but does not help
anyone else reading it who is, or knows someone who is in a similar
position.  Please can some bear this in mind when replying - it is better
that someone asks for help (and is offered something constructive) than that
they give up trying and 'let nature take it's course' or worse still abandon
the cat with the notion that ' I didn't think I could cope'.   Having worked
voluntarily in cat rescue centres, the world is full of dreadful and cruel
people - very few of them ever make it to a message board like this.   Lets
ensure that those who do care are encouraged and educated to avoid future
mistakes. This is the ideal forum to provide such help.

Right, that's me off my soapbox, and Emma, please do let us know how you get
on (were you in time to terminate the pregnancy?), and if you need any
further advice please let me know,
regards,
Rosie