Educate about terms, please.

[Lena __]

Hello, the Doctor.
I wished to ask a question in occasion of calculation of time of pregnancy, discontinuing and terms of the test or dough. How much or As far as I have understood, calculation of time vynashivanija (9 months) begins with the beginning of the first day of last menses. And here on following questions has not found answers:
1. The vacuum is possible or probable up to term of 4-5 weeks. But what weeks, from the beginning of the first day or from the beginning of a fertilization a spermatozoon?
2. When the -test can give reliable result (beginning from the moment of a fertilization)?
Thanks for the answer.

[evromedprestizh]

1. Abortion mini or farm is possible or probable only about 3 weeks of a delay of a menses.
2. For exception of pregnancy it is necessary to hand over the analysis of a blood on a hormone beta-Ou? and to make US. House tests-only approximate reference point.

The doctor -gynecologist Usatenko Feodor Nikolaevich.