Sounds like there's still a lot of misinformation around among front line HCPs, Daisy.
These are some quotes from NCSCT's briefing for midwifery staff (NCSCT is the body that trains and accredits NHS stop smoking services):
Past and present smoking status relates to tobacco smoking. If a woman reports that she is using an electronic cigarette (e-cigarette), confirm that she is no longer using tobacco alongside the e-cigarette. If she is not using tobacco, her current smoking status should be recorded as a non-smoker.
If a woman reports that she has stopped tobacco smoking completely but is using an e-cigarette, she should still be congratulated and encouraged to stay away from all tobacco use, even if that involves continuing to use an e-cigarette to avoid relapsing to smoking.
There isn’t nearly as much evidence for e-cigarettes being a useful aid to quitting smoking as there is with established stop smoking medications. However, they appear to be very popular with smokers and new evidence is emerging all the time indicating that e-cigarettes can help with quitting and with cutting down. What we definitely know is that e-cigarettes are significantly safer than smoking tobacco.
The document then refers readers to the NCSTC briefing on ecigs:
Don’t push people to come off their e-cigarette. Some practitioners feel it is important to get people off nicotine as soon as possible, but in fact longer-term e-cigarette use can be a protective factor against relapse back to smoking.
Don’t be alarmed about recreational nicotine. This is a choice some people make, and it is not the business of stop smoking services to make judgements about this. We are not a ‘stop nicotine service’ and if we think getting people off their e-cigarette is a good use of our time, we are ignoring a far more important opportunity to help people quit and to stay off cigarettes. Be open to their choices, and listen to them, especially when they say that they are doing really well with their e-cigarette.
Look forward to hearing people celebrate their success, and telling you that using an e-cigarette and receiving support was a revelation.
Nicotine really is not the issue, even in pregnancy. The issue is the carbon monoxide and the tar and the fuckton of carcinogens in inhaled smoke. It may have been worth referring you to stop smoking services if you were struggling to stay off the fags even while vaping, or if you actually said you wanted to quit vaping altogether (although this would not have been a priority for them). Otherwise, your MW was not following best practice.
Similarly the consultant who classed you as a smoker for DVT risk. There is no evidence to support this.
There was a 2017 report by ASH which highlighted the lack of training and confidence in midwives and other HCPs to address smoking in pregnancy. One of the findings was a lack of understanding around vaping.