Have you considered what you'll do when baby is born if you haven't managed to pack it in?
Have you read about third hand smoke and the potential risks to babies? And aside from risks, all us smokers and ex-smokers know that while a cigarette smells ace, somebody who has just had a cigarette smells vile. Not a stink you want your baby to grow to associate with mummy.
So, when you're caring for your newborn, not only is it going to be pretty difficult to find chance to sneak outside for a fag, you'll have to find the time to clean up, not just wash your hands but shower and change to avoid stinking and to avoid risking your baby's health. That really won't be easy and it's far better to cut right down or quit now.
I was lucky, the smell of cigarettes made me nauseous in my first pregnancy so I was able to stop easily. I started again when DD was 12 months and I split with her dad but only ever smoked when she was at her dad's. A few years ago, mum got cancer and asked me to quit, so I went a bought a vape that day.
It was harder to quit the vape during this pregnancy than it was to stop the cigs the first time round but I managed it because DD was in hospital and off school for a couple of weeks and I just didn't have chance. So I'd weaned myself off accidentally.
How difficult is it to swap the cigarettes for full time vaping?
Are there situations where you can't smoke? If you're with certain family members or friends for example? At the gym or cinema? Go and see those people or do those things more often after work when you'd normally have a cigarette.
My sister also found it difficult. When she couldn't beat the craving she would put the cigarette out after a few drags, when she'd got her nicotine hit.
Changing brands to a stronger cigarette you like less may also help you cut right down