Tell or Say, please, with what restrictions on sex during beremennost are connected...

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Tell or Say, please, with what restrictions on sex during pregnancy are connected? And in what months nevertheless employment or occupations by sex are safe?
In advance thanks.:-)

[Pasenjuk A.M.]

Restrictions in sex are connected with threat of an abortion on early terms till 12 weeks and on with threat prezheldvremennyh sorts or labors on term of 30 36 weeks. In the rest of the time - live.