I'm watching Poldark as I missed it first time around and once again the only sign/symptom of pregnancy is someone being sick and she just gave birth in minutes!
Waters breaking in a dramatic fashion is always, always the first sign of labour in films!
What other ridiculous depictions of pregnancy /birth can you remember from films?
(Disclaimer --- I'm not saying those things can never happen! Just that most of us have other experiences too!!)