Ok, i really have to chime in here. So far all i have seen in this thread is "no smoke, no vape, no nic, nothing." Why is it that everyone is so quick to forget that we are dealing with a human being here, with real weaknesses that need to be acknowledged? A woman doesn't cease to have the same vulnerabilities as everyone else just because she's pregnant!
The truth here is, even in the most extreme of circumstances, a person may not be able to quit everything. This is a reality we need to deal with for what it is.
That said, sinead, my best advice to you is
reduce the potential harm to your child as much as possible. Reduce the harm of everything, gradually so as not to relapse, i.e. switch from smoking to vaping, then lower nicotine levels bit by bit, etc. If you quit everything too fast the shock to your system may do more harm than good, and you'll be more likely to rebound back to square one! Just take it easy, and don't put too much pressure on yourself (extra pressure and anxiety is no good for the child either, and it may drive you to smoke more!).
I've heard doctors say that if you absolutely cannot quit completely, at least reduce your intake to a few cigs a day rather than a pack; it will lessen the risk. That same logic applies to vaping as well. If you find yourself unable to quit, cut back as much as possible under the guidance of your doc. I think you'd be surprised at how successful you'll really be
And of course, congratulations