Why have I not lost weight?

[MamanSparkles]

So, I've been counting 1400 calories a day (average) for 2 weeks now and have absolutely no change in weight at all! So fed up. I'm disabled so exercise is very hard and involves a carer to take me to a disabled swim session, and it's been really hard to cut my calories this low already! DH does so much for me and DD already, i don't want to ask him to add a swim session in too, so exercise is out.
Any ideas anyone? Do I need to look at the types of food I'm eating? This is restricted too as I have multiple allergies.

Yay 0.5kg down this week. Without actually changing anything except breakfast to protein and fruit. I realise I forgot to account for water retention, oops. Thanks for all the tips!

You are eating more than you need to, especially if you are not easily able to increase your level of activity. I'm very active and had to drop to 1000-1200 calories a day to lose 2lb a week

Ditto on carbs. We hardly ever eat rice potatoes or pasta. Lots of veg/ salad instead.

Have just read a book called The Personalized Diet by an Israeli research team. They wanted to discover why no one diet works for everyone - they measured people's blood sugar and analyzed what they ate. Why measure blood sugar? When it spikes, the extra glucose in the blood gets turned to fat - this is when the pounds heap on.

The conclusion they reached was that certain foods will make certain people's blood sugar spike, some foods will have no effect. The surprise finding was the list of foods that causes an individual's spike is totally different from person to person - Dr Segal could have an ice cream and his blood sugar remained rock steady while rice sent his blood sugar through the roof.

I've bought myself a blood glucose meter, many strips and put myself through the pain of measurements before and after every meal. Have learned so far that all grains are bad for me - wheat (pasta, bread) oats, brown rice, while chicken and a chocolate milkshake for example keeps my blood sugar steady.