The dear doctor! My guy speaks, that, being engaged in sex without is protected...

[Irina]

The dear doctor! My guy speaks, that, being engaged in sex without preservation during monthly, it is impossible to become pregnant. It is the truth? Whether it is possible to be protected at this time? (illnesses or diseases at us are not present, we were checked).

[Alain]

He has joked: or did not know.
To become pregnant it is possible even during monthly.

[Natalia]

Theoretically, it is really possible. Simply probability small. If at you irregular monthly - that the probability increases or is enlarged. Possible or probable pregnancy depends on when at you the ootid ripens, how much she will live (it is considered, that till 7 days) and how much will live spermatozoons of your partner at you in an organism (too up to 7 mi days). At 28 day time cycle it is considered, that the ootid ripens for 13 14 day. Accordingly - plus and a minus week - dangerous days. BUT: this all - not 100 %-th guarantee and if a cycle irregular, to calculate days difficultly. If do not wish to risk - be protected in addition.