Scardycatsmoker - I smoked (10-20 roll-ups a day) until 3 months into my first pregnancy (4 years ago). You well know, as I did, that smoking during pregnancy is NOT good and may harm your baby which is why you want to stop. There are so many good reasons but it is hard. I hoped that when i fell pregnant i wouldn't be able to stand smoking but it didn't happen.
Picture yourself in 10 years time... are you a smoker, with a constant phlegm problem, greying skin and developing unattractive lines around your eyes and mouth? If the answer is no, that's not what you want to see, then why wait... just stop now and that won't have to be you. The longer you leave it the harder it will be, not to mention your gorgeous, perfect new baby who has no choice. There's no point in doing it next week, or next month. Do it straight away and you will be so proud that you did and will feel and see the benefits too.
I told myself that I WOULD NOT smoke. It didn't matter what it took to do it, I just wouldn't smoke. And I just took it one day at a time. I Screamed, I cried (floods of tears quite frequently), I ate quite a lot of chocolate, I went out for brisk walks with chewing gum or a chuppa chum clamped in my mouth. Whatever it took to get through each day. Then the next morning, I'd feel so good physically and mentally about it that it gave me renewed energy to try again for another day. It was immensely worth it! I have not smoked a single one since (I wouldn't dare!) and I only miss it very occasionally when really pissed off with something.
You can do it! I was 8 stone before I got pregnant and put on 3 stone during that pregnancy but lost it all afterwards with very little effort despite not dieting at all. I used to quite often have a cigarette instead of eating and since having the baby, I obviously don't do that anymore and eat perfectly normally but haven't gained more weight - you're just pretty busy with a baby!
One last thing (sorry, a bit of an essay) just look around you the next time you're in town (not smoking) - Look carefully at people smoking. Do they look beautiful? Do they look really happy? Do they even look like they are really enjoying it? I can guarantee that in most cases they look bored, fed up, slightly dirty and definitely their lives do not appear to be even remotely improved by smoking. This gives such a clear message that it is just not worth it at all. The financial cost is not worth it, the cost to your health and your child is not worth it, the cost to your looks is not worth it.
It would obviously help hugely if your bf stopped too, but if he just won't do it, then at least try to get him to never do it when at home and to ensure he gets the smell off him as that will affect you.
Finally, do both read the Allen Carr - Easy way to stop smoking book.
Good luck! I'm sure you will succeed.