Hello!

I'm a personal trainer, and I think 10kg should be achievable, as long as that leaves you at a respectable weight (i.e. you're not trying to drop down to 45kg!)

With exercise, you need to push yourself, even if you're BF (although keep an eye on your supply, and if you think it's dropping, pull back a little - but unless you're going nuts it shouldn't be a problem). Also - do a lot of different types of exercise - jogging, swimming, classes, team sports - whatever you enjoy. If possible, try and do something every day, even if it's just an hour's walk with the pram. Weight training is good because it tones you up and gives you shape, and even though that might make you a bit heavier, you'll look better. However, if you've only got time for 1 type of exercise, go for cardio, rather than weights.

With diet, the most important thing is to cut back on fat. Although people do lose weight when they cut out the carbs, it tends to be temporary weight loss. Also low-carb diets also leave you feeling too tired to do much exercise. One good rule of thumb is to only eat things that have less than 10% fat (look at the label), apart from the occasional special treat of course!

Finally, do be aware that our bodies need time to adjust after birth, and this may affect how you lose weight. With some women, the weight just drops off, with others, it takes more time. So don't be disheartened if you make slow progress at first. For me, I started running 3 weeks after the birth, but hardly dropped any weight until my DS was 4 months old (even though I was BF) - but in the last month or so I've lost 5 kilos.

I'm happy to help if you ned any advice. Good luck!