I'm glad you had a good cruise and I really don't want to read to deeply into this but at 2 to 3 weeks, a woman (unless she has a really tiny frame) isn't showing that much and would not be challenged by the boarding crew. On the other hand, a woman at 20 weeks (5 months) would be showing and would cause concern for the crew. My point is at 5 months, a woman with a tiny frame would look like she is going to explode opposed to a woman at 5 months that is heavier in weight. The safety of the passengers begins at embarkation. I'm not sure what the frame of your wife is in this scenario but in an event such as yours where she was 5 months on, maybe a doctors note indicating her progression would have been a good choice to have before boarding. Hope all goes well and congratulations on your new baby ;).
Review by scottcabit
In response to review, CrusinTim says ...
I can't imagine how the cruise line would even know if someone was two or three weeks pregnant. Most women don't even know if they are indeed pregnant. Not many people even suspected that I was pregnant until I was 7 months along, I guess since I am tall. This information about required paperwork should be more prominent on cruise line Websites. I never heard of this before. Thanks for the information. Happy to hear you were able to get the necessary paperwork in time to cruise.
Thanks for the review, glad you had a good time. Congrats on the baby.
The request to inform the cruise lines about pregnancy , is readily available. I believe it would be prudent to explore all scenarios prior to cruising.
Not just for pregnant women but for all passengers with health concerns.