no it can't prevent pregnancy
BV won't prevent pregnancy.
Vitamins don't prevent pregnancy.
Lithium does NOT prevent pregnancy.
NO ! ONLY contraception or abstinence can prevent pregnancy !
No. Cytotec can be used for abortion but not to prevent pregnancy.
Starch as in pasta, potatoes etc? That does not prevent pregnancy.
Yaz is a birth control pill. It is intended to prevent pregnancy.
washing your hands and washing up daily
to prevent infection
washing hands
It can control it by washing the germs of. but only if you sing the alphabet while washing your hands.