Is knowing the sex of the baby part of the knowledge of the unseen?

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Ruling on medical tests to out the sex of the foetus
Making du’aa’ after the obligatory prayers is bid’ah

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Related Answers:
Are the compilation of the Qur’aan and the first adhaan for Jumu’ah forms of bid’ah (innovation)?
He claims to have a hair of the Prophet (blessings and peace of Allah be upon him) and he wants to build a mosque in which to preserve it!
Are All Deeds of Innovators Rejected?
Ruling on medical tests to out the sex of the foetus
Making du’aa’ after the obligatory prayers is bid’ah

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