Hi mrs t,
I had a happy home birth with my first baby and am currently planning the same with my second next May.
I weigh more than you, I'm not saying exactly how much, but my BMI with my DD was 41, this time round its 42. In my area, if you're BMI is over 35/40 (depends on which policy you read) then you are classed as high risk and have to fight to get a home birth, however, remember it is YOUR choice and you should not be bullied. Every woman in the U.K. has the right to have a home birth. However, with second and subsequent children, it doesn't seem like you have to fight as hard.
The risks you face because you are overweight, I'm not too clear on. I think the issue is that anyone overweight/obese (by BMI standards) will find it more difficult to birth a baby simply due to size and bulk (although this certainly wasn't the case for me) and crucially that if you are transferred to hospital, it is much more difficult for professionals to give you emergency treatment again due to your size. I suppose there's the added issue of high blood pressure and higher risk of gestational diabetes, although this wasn't a problem for me first time round.
All I'm trying to say is that you may have a couple of small battles ahead of you, but get a supportive midwife behind you who is pro home birth and go into any appointment armed with your reasons for wanting a home birth (read
this thread if you want any idea and check out the birth story links) and you should be absolutely fine.
I would recommend doing some reading in the meantime, then waiting until you get pregnant and mentioning it to your midwife at the earliest opportunity and ask for some alloted time to discuss it with her. The attitude towards home birth and support for it really varies from area to area. It may also be worth spending some time thinking through the practicalities of the home birth (where you would birth, would you have a pool, where would children go etc etc) to get this straight in your mind too. I would also talk to mr t again about your thought and try to get him on side, a supportive and understanding partner about this, is absolutely crucial.
I hope this helps
Valentine Xxx