There is no proof that birth control has a long term affect on being pregnant.
Type of birth control and used
Birth control pills have hormones because hormones are the chemicals that affect ovulation and other aspects of fertility in the female body.
Penicillin does not affect birth control.
It's a antibiotic so if you are on the pill it will not work and you risk pregnancy. If you are not on the pill or use some other birth control it will not affect your fertility.
Birth control pills are for reducing, not increasing, fertility.
Asprin doesn't affect birth control.
Taking four or five birth control pills in a day does not affect future fertility. This is how emergency contraception was done before Plan B came on the market.
Harriet B. Presser has written: 'Sterilization and fertility decline in Puerto Rico' -- subject(s): Birth control, Human Fertility, Population, Sterilization (Birth control)
Augmentin does not affect how well the birth control pill works.
Cortisone does not affect how well the birth control pill works.
Antibiotics rarely affect the birth control pill in general.