Well...your question is really up for debate.
Most local HK people I know would look at you and say, "So you get eight weeks of maternity leave? So what? That's normal. That's life." Some people would feel that it's unfair for you to get leave at all because your job as an employee is to serve the company first. Some bosses really do seem to hold this view.
Comparing the system in the UK with the system in HK is like comparing apples and oranges most of the time. I personally definitely prefer a better "work-life" balance than what most jobs in HK offer. I think if local HK people were to experience that type of standard it might open the floodgates of demands for "better treatment" when comes to things like maternity (and paternity) leave but most have no real concept of such things--very foreign idea.
The fact that you seem to have the option to actually negotiate with your company is pretty profound, I think. Most people I know (myself included) would never have this option. The government in Hong Kong sets the standard minimum maternity leave--it's legislated--not decided by individual company. So, government employees get a total of 12 weeks maternity leave (but the general law is a minimum of 10 weeks) but as you have to take off no less than two weeks before your due date, that maternity leave is about 10 weeks. If your employer is only giving you 8 weeks then they are breaking the law. You are entitled to 10 weeks minimum.
I went back to work the day my daughter turned 8-weeks-old. Despite this, I didn't find we had any issues with bonding or me really missing milestones. On the other hand, I don't work 12-hour long days, 6 days/week generally (as many of my friends do). I live close to where I work and my helper brings my daughter to work and I breastfeed her on my lunch break. I think breastfeeding has helped me a lot with the bonding experience with my second child--and the fact she's my second child so I was better prepared to cope with the initial stages of infancy with her.
But, now might be a time to really soul-search and evaluate what your priorities are. Maybe have a few "Plan B"s up your sleeve so if you do find that your current employment doesn't work after having children you have some other options. Some women return to work and find that they don't like it and prefer to be at home full-time with their babies and find a way to make that happen--or otherwise find part-time work that allows them more time with their children. Most employers I've heard of (especially local companies or in the law and finance sector) don't have much leeway or flexibility when it comes to mothers in the workplace so you either make your job your number one priority or you look for another place or sector to work in. There are other threads on this forum where women discuss their work choices and compromises after having children--including decisions to switch careers in order to allot more time to their babies.
It's all up to what you feel is a priority. It's not likely the current system in HK ("the rat race") is going to change anytime soon--that's why us creative mamas have to adapt.
