how can i do a safe sex..and when

Hello,

Welcome to ehealthforum and thanks for writing

Usually the first seven days after the periods and last seven days just before the periods are considered safe and chances of pregnancy are not possible but there is not hundered percent guarantee.Also it applies in woman who have regular 28 to 30 day cycle and the first day of period is counted as day one.

Ussually ovulation occurs between 9 to 16 days in a regular cycle and fertilization chances are possible in those days.

The best way to prevent pregnancy is by using various contraceptive options available which your partner can use as pills,implants,injections etc.Consider visiting a Gynaecologist for discussing the various options and the best suited for you.

Take care!