Any tall expecting mums being assumed by people that we will be less tired as compared to others?

Seems like I might be a suitable candidate to answer your question since this is my first pregnancy. (Not to mention I'm also 170cm tall!) So I'm gonna try and clear your doubts, hoping that this makes you feel at peace with your conflicting feelings. Your case is as good as people saying "Hey, you got really wide hips/a big bum, it must be much easier for you to give birth than those with narrow hips! That's why you should bear more kids for your husband!" (Typically popular in olden-day context). Just take comments like that as a form of silly humor because people who truly know wouldn't say that, while people who don't know at all, talk frivolously and base their rationales out of thin air, without realising how ridiculous they sound.   If you can't laugh it off, just shrug it off. After all, it's not your job to figure out why they think that way. Neither is it your job to correct them.You'd be better off doing something that nourishes your soul than trick yourself into figuring out the "weirdness" in these people. Remember that, how people think of you/see you is merely a projection of themselves. You don't have to take it to heart at all. You have the choice to not let it affect you, unless you allow it to. And honestly, it's not just tall people taking the fall. People of all kinds of sizes get "criticised" in their own ways. I've heard of petite ladies getting criticised for carrying a baby for 9 months because her body frame is "not wide and big enough". I've also heard of slim ladies getting criticised because she does not have "enough fat" around her abdomen to protect her baby. Then I've heard people "criticising" plus-size ladies looking "the same" whether pregnant or not pregnant, thus pregnant or not pregnant "she probably doesn't feel as tired/hungry as skinny people". And the list goes on.... These endless "criticisms" are preconceived mindsets/prejudices out of the Big “I” - Ignorance. Justifying yourself to them is like (excuse the language) flashing your genital at them to prove that you're a girl. And why would anyone do that? After all, if you're a girl, you're a girl. What's there to prove? More importantly, what's there to wonder why they think you're a boy just because your hair is shorter? Before I close, I'd like to say that unkind comment is a common thing in this world. We cannot control how people see/treat us but we have power over how we respond. If we react negatively, (whether is it through aggression at the opposite party or self-sabotage, self-pity), we give power to this form of negativity and become a victim of it ourselves. Thus, the best way is to prioritise inner peace and calmness. We learn how to accept our own "flaws", and practice love and compassion over overselves. When we constantly nurture a healing energy from within, negative comments would have no effect over us in the long-run because we know how to self-heal. If we heal base on how others compliment us, healing would stop when people start to criticise us. Self-heal does not seek for external gratification/recognition at all. It only seeks for inner peace through a quiet and undisturbed mind. Always remember, you have the choice to decide your personal vibrational frequency. Do you want a hurtful energy in you? Or a healing one? I hope this resonates with you and I genuinely wish you all the best in your first pregnancy and may you dwell in peace, love and joy regardless of countless naysayers around you. Be well and take care.