Why is my lower belly pain lasting 3 weeks?

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. 

It can be due to swelling in the labia because of infection and severe pain. It is best to see a specialist

Irregular me­nstrual cycles have various potential cause­s, like stress leve­ls or hormonal fluctuations. Precum may sometimes carry spe­rm cells, though the pregnancy risk is minimal. Some­ light bleeding might occur after taking Re­gestrone, as it helps re­gulate cycles. If concerne­d about a potential pregnancy, consider taking a pre­gnancy test. 

Taking Ella one within 120 hours after unprotected sex reduces pregnancy risk . Ejaculating outside also reduces pregnancy risk . However , there is still a chance of pregnancy. Emergency contraceptives are not 100% effective. Use condoms for STI prevention. 

Some may feel motion sickness, fatigue, and increased appetite when they are pregnant. These signs may appear within a few days after fertilization. Nevertheless, anxiety or modifications in somebody’s regular schedule can also result in the same symptoms. To confirm if someone is pregnant they should take a pregnancy test. It is advisable to wait for some days after a late period to have the most precise outcomes.

Blighted ovum, which is also called the synonym "anembryonic pregnancy," is a situation where a fertilized egg is implanted in the uterus, but the embryo does not develop. I understand your worries about having two blighted ovums one after the other were scary. The most important thing is to consult your doctor, who knows the potential causes and comes up with the possible solutions that allow you to have a healthy pregnancy in the future. You could have further examinations which are done to help decide if there is an underlying factor that is causing this to happen multiple times. 

Since you had a delay in your monthly period, it may be a sign of pregnancy, but there are other possible reasons particularly stress and changes in hormones. To know that you are safe you could do the test only after the 14th of May and learn if you are expecting. Your cycle is subject to the effect of countless factors in various states of your body.