which precaution i have to take at the time of intercourse?

Make absolute sure to use protection (i.e. condom, birthcontrol pills etc.) and if you are using a condom check it now and then to make sure its still on/hasnt broken. If you are unprotected. Make sure the male urinated a time or two before sex. This gets rid of sperm in precum and reduces the chance of pregnancy. Unprotected sex is NOT smart and the pullout method is NOT safe. You can still get pregnant. Hope this helps and i hope you have fun!