There are various methods of contraceptives on the market that a woman can choose from. The area where these products typically differ would be mostly in how comfortable a device is and how disciplined a woman must be when it comes to using this type of device.
One of these devices is referred to as the vaginal diaphragm. This is a device with a circular ring coated with contraceptive jelly lining the device that fully covers the cervical canal. Without this jelly, the device would be completely ineffective. In order for the device to work properly, a woman must place the device into her vagina before engaging in sexual intercourse and it must remain within the vaginal canal for at least 6 hours after intercourse to make sure that no sperm has been able to penetrate further into the uterus.
This is a device that comes with some obvious disadvantages. One of the most frustrating for patients is the lack of spontaneity in their sexual intercourse. Women may not appreciate having to pause when "the mood is right" in order to go to the bathroom and prepare their birth control method in order to have intercourse safely.
It is also a device that needs to be fitted properly for each woman and the sizes can vary quite dramatically depending on weight changes in a patient. Women who gain or lose a lot of weight will not be able to use their device effectively and must be refitted. Pregnancies can also change the topography of their cervical canal so you will need to be refitted for a new device.
Women also need to be well-trained in how they insert the device as well because any improper alignments can lead to reduced effectiveness. As you can see, there are a number of negative factors that can impact the ease of using this type of product.
When it comes to the effectiveness of this product, it was also determined that these agents are between 92 to 96 percent effective at preventing pregnancy. This is a very respectable number but when it comes to other devices on the market that has higher success rates as well as being more user-friendly, this is typically not the first choice that women will ultimately make when choosing a proper birth control method.
Some of the more effective choices for women would be drugs like oral contraceptive therapy, transdermal patches or an intrauterine device (IUD) that would be inserted long-term into the uterine cavity. All these types of contraceptive agents also come with their own list of potential side effects that can make the use of these medications less than ideal as well. Patients may not want to take any additional sex hormone as a way to prevent a pregnancy.
The implantation of an IUD can also slightly increase the risk of a condition called pelvic inflammatory disease (PID). This could complicate the chances that a woman could get pregnant in the future so it is up to the patient to meet with a gynecologist and determine what method of contraception would be most effective for them. 
Still have something to ask?
Get help from other members!