Hey,
the article just discusses that there could be a possible chance of getting cancer in future life, and discusses average radiation doses etc -
your dose from the ct scans are likely to be equivalent to 1-2years of background radiation (radiation we receive naturally e.G. From the sun, mobile phones etc).
But basically there are not many studies to show the effects from medical radiation - it would be unethical to conduct studies as such incase the study did produce any ill effects on an unborn child. So generally, pregnant women should not be exposed to unnecessary radiation unless the examination outweighs the risk.
Let us know how you get on, all the best xx.