A negative pregnancy test can occur when you have a late period and are not pregnant. Your menstrual cycle is under hormonal control. The ovary usually releases one egg (ovulation) each month, and about two weeks after, the uterine lining sheds, resulting in menstruation.
In many cases a pinched nerve can be treated with rest and ice. If the pinched nerve is in the arm (carpal tunnel syndrome or cubital tunnel syndrome) the doctor may recommend a brace for a short period of time. The brace limits the amount of movement around the nerve, which allows it to rest and recover.
There quite a few things that can help you feel better when your sciatic nerve is acting up. Heat and ice. An ice pack may reduce inflammation that is associated with sciatic nerve pain. Heat helps to increase the blood flow to this area. Alternating both cold and heat can give positive results in reducing pain and inflammation.