What probability to become pregnant in "critical" days? Also what to do or make, if to...

[The waiter]

What probability to become pregnant in "critical" days?
Also what to do or make, if has terminated there in "usual" days?

[Julia-doctor]

1. If cycles nereguljarnye-that is enough greater or big
2. Vam-to think of prospect to become or begin the father. And to learn or find out from the girl about days in which it or she has a probability of conception. And to use this knowledge.