Weight Loss Diet for Working Womans

Hi Ladies:hiya,
I have seen the diet plans and mostly are suited for people who are house wives. I'm a damn software engineer and spent most of my time infront of my monitor. can anybody suggest a diet for me that would work for a working woman:bonk.
My information
Age :26 Years
maritial Status : married
Height :5.5
weight : 79 Kilos
My work timings 7 to 5(i start from home at 5 and still cook).:rant
suggest a better regime as you could not squeeze exercise into it
i don like sweets and carbonated drinks.
am not able to conceive because of my weight but my husband still loves me.
i need help please