There isn't one. Bodies aren't clockwork-perfect, so "safe" periods and "rhythm methods" are notoriously unreliable. One in five women relying on that gets pregnant within one year.
Oral contraceptives (or "the pill") Sterilization
Yes, so it's important to use protection such as condoms or the Birth Control pill.
No. You get a period with/without the pill. All the pill does is protect you from getting pregnant.
No method of birth control is 100% effective, including condoms. Of every 100 couples who use condoms correctly and consistently, only two will experience a pregnancy. The pill is 99% effective if used exactly as prescribed and a day is never missed.
If you are just starting birth control you should wait at least a month before having unprotected sex. That is the safest way to go. If you really can't wait that long you should use condoms for 2 weeks.
Yes, you can start the pill 10 days before your period. If you do, use a backup method, like condoms or abstinence from vaginal sex, until you've taken the pill correctly for 7 days.
You can get pregnant at any time nothing is 100% going to stop it - condoms are 98% effective, the pill is 99% effective and getting pregnant while on your period seems impossible, It can happen
Your are suppose to start the birth control pill the Sunday after your period. If you haven't had a period its best to take a pregnancy test to make sure your not pregnant. If you test is negative then you can go to your gyne doctor and they can give you a pill to start your period.
If a pill is taken without sex, you will experience the side effects of the pills which might be massive pains in period and the uterus cancer.
Any combination birth control pill will give you more regular vaginal bleeding. None of them will cause a lasting change in your menstrual period. When you stop taking them, you will return to your previous menstrual pattern.
Yes it gives you cancer
Not if you want an STD. under normal circumstances the pill has a reputation for being a good method of contraception however there is no such thing as 100% safe.