uhhh sounds like you are promoting smoking. Worse, using anecdotal evidence, you are suggesting smoking while pregnant isn't a risky behavior.
The evidence is clear. Smoking while pregnant puts your fetus at risk.
That said, glad your babies were fine.
First off, I don't know how this has been proven---I only go by what I've witnessed in my 75 years. Smoking was never an issue for pregnant women or any one else, back in the day (don't remember when this warning began).
No one told women they could not/should not smoke while pregnant yet they did not have unhealthy babies .Sure, some babies were and are born with serious problems---whether their mothers or fathers smoked or didn't. You must know some cases. We do not know all the answers to why this happens---heredity, recessive genes, parents' ages, etc.
No, you are wrong to conclude that I promote smoking. What I object to is unproven information.