Never ever smoked. Mum used to smoke 20+ a day.
She's quit now - after a heart attack and a smoking-related cancer (surgery for which has been life-changing). She's recently been diagnosed with COPD and is on a 'watch and wait' 6 month review with the oncologist for changes to lobes in both lungs - likely to be lung cancer but having grown from 0.5 to 1cm, still too small to do anything about. Hoping they grow slowly rather than spread like wildfire.
The emotional toll is immeasurable. On the whole family. This has been 10 years of worry and hospital appointments all due to smoking. And, like you, she never considered quitting at all - not even when as kids we begged her to stop. Of course, hindsight is 20:20 and she wishes she'd never started and regrets putting us all through this. And of course with the COPD and potential lung cancer diagnosis on the near horizon, she is anticipating a future with more pain, worry and ultimately a potentially scary death fighting for every breath.
I know I've been exposed to second hand smoke. I now worry about my own health due to her smoking and it terrifies me.
Finally, the cost. Let's say you smoke 10 a day including when you smoke more at the weekends (plus you know you're kidding yourself about the 4-8 per day). That's around a fiver a day. £35 a week. £140 a month. £1820 a year. In my house that'd pay for a bloody good holiday for us all. Over the course of, let's say the child you are planning ttc first 18 years, you will have spent, at todays prices, nearly £33K.THIRTY THREE THOUSAND POUNDS on a 10 a day habit that YOU KNOW is causing you harm and can potentially lead to life-changing illness that will affect your whole family.
If all this - from the middle-aged adult 'child' of a smoker - isn't enough to scare you into quitting isn't enough, nothing will.
Oh, and you are kidding yourself if you think you don't smell. You do.