Foam is a vaginal spermicide which is placed into the woman's vagina using an applicator. It has two contraceptive effects: it kills or destroys sperm (which is why it is called "spermicidal") and it prevents sperm from reaching the egg by blocking the opening to the cervical canal.

A home pregnancy test measures the presence of the hormone human chorionic gonadotropin (hCG) in your urine. HCG, which is produced in the placenta shortly after the embryo attaches to the uterine lining, builds up rapidly in your body in the first few days following implantation.

If you're extremely tuned in to your body's rhythms, you may begin to suspect you're pregnant soon after conception. But most women won't experience any pregnancy symptoms until the fertilized egg attaches itself to the uterine wall several days after conception.

There are more than 400 different species of bacteria in the human digestive tract. The most important of these are Lactobacillus acidophilus and Bifidobacterium bifidum. They are called probiotics, meaning for life, because they aid in creating a healthy balance of microflora in the gut.

The Protectaid sponge is a soft round piece of foam used to prevent pregnancy. It is a very effective form of birth control. Placed into your vagina before intercourse it prevents conception by blocking the passage of sperm to the cervix and by destroying sperm with an effective spermacide.

Protectaid Vaginal Contraceptive Sponge with F-5 Gel Intended for the Prevention of Pregnancy. Instructions for Use

The oral contraceptive pill is one of the most researched and life affecting drug of all time. The pill is a contraceptive suitable for women of all ages. The pill is not designed to be used occasionally. The body requires time to adjust; misuse has often lead to unwanted pregnancies.

This pill contains only the synthetic hormone progestin. It interferes with the natural cycle. The progestin acts on the lining of the uterus walls and on the jelly-like mucous at the entrance of the cervix to make it difficult for sperm to get through. The ovaries keep working.