Why do I have white discharge and back pain?

Not having your monthly period can be one of the side effects from Diane 35. But, in that case, we would rule out pregnancy as the reason. It is essential to talk with gynecologist and ask them about your condition's further guidance.
 

It is highly unlikely to get pregnant just nine days after conceiving on April 12. Brown spotting around the expected period date can have various causes unrelated to pregnancy, such as hormonal changes. However it's best to consult a your doctor for personalized evaluation and advice.

You might have ovulation ble­eding. This happens when your body le­ts out an egg. You might see a bit of blood or cle­ar sticky stuff. It is normal to have small cramps too. It will go away soon. Drink water and rest. You can put a warm thing on your be­lly if you need to. 

Since you took the morning after pill multiple times within a month may have altered your menstrual cycle and caused a delay in your period. But there is still a possibility of pregnancy even if you have taken the morning after pill. Because emergency contraception is not 100% effective in preventing pregnancy, and repeated use of the pill within a short period of time may decrease its effectiveness.

If it's within 72 HOURS of sex,, take emergency contraception.. Consider regular birth control.. Get tested for STIs.. Make sure to use protection next time.

What might fit in the picture is yeast infection, which is one of the most common among women. The burning and itching are the two primary common symptoms. The feeling of your vaginal opening getting bigger or wider may be due to swelling from the infection. Antifungal creams or suppositories that you can get over the counter could be tried for this purpose. Don't forget to keep the region clean and dry, and wear cotton underwear to promote the healing process.

If you've had a positive pregnancy test and want to avoid continuing the pregnancy, consult a healthcare provider as soon as possible to discuss your options, including abortion. Follow their guidance for the appropriate procedure, and consider discussing future birth control methods after the abortion for pregnancy prevention.

It is essential to note that unprotected sex could cause unwanted pregnancy and there arise the possibility of getting sexually transmitted infections. The change in menstrual cycle might be a result of hormonal imbalance, which in this case should be evaluated and treated by a gynecologist. A gynaecologist should be consulted for a thorough examination of the issue and a range of suitable contraceptive methods should be discussed.