Why am I Not Pregnant After Stopping Birth Control?

You and your son might have thrush, a fungus infection caused by Candida. Vaginal thrush could make you feel itchy and produce a discharge that looks like cheese. Typically, you’ll be advised to use antifungal creams or tablets. Treatment for oral thrush in your son can involve antifungal oral gel or drops. To avoid transmitting the infection back and forth, both of you might need treatment for nipple thrush. Make sure you take all the medicine prescribed for you to fully recover.

You may have a hormonal abnormality or gynecological condition that is disrupting your menstrual cycle. You should see a gynecologist for in-depth screening and diagnosis. Based on the underlying cause of your symptoms, specialist may prescribe additional tests or treatments.

It is unlikely that you are pregnant if you were on the Depo shot and he withdrew. The brown discharge and feeling sick could be from hormonal changes or other causes, not necessarily pregnancy. Nausea can occur for many different reasons such as food poisoning or stomach problems. If you are concerned, take a pregnancy test to ease your mind. 

Having some variation in cycle length from month to month is pretty normal, and it's also normal for cycles to range between 21 to 35 days. In your case having cycle lengths of 23 days and 28 days is within the normal range.. And pain and cramps during a 28-day cycle is quite normal which almost all women go through. If its really unbearable you can condult your doctor