Severe pain that interferes with daily activities and is not relieved by medication or hormonal contraception.. requires further evaluation. Seek a second opinion if your think your current medication is not working for you.

It's normal to receive a negative result on an hCG blood test right after the missed period. Sometimes, the test can't detect pregnancy because it's too early. Therefore, if you still experience symptoms such as nausea and breast tenderness, you can retest a week later. However, it is also important to be calm and patient. If you're still confused, getting a second opinion is a good idea.

The pain in the bottom right corner of your belly near the private area could be due to several causes such as appendicitis, ovarian cysts, urinary tract infections or pelvic inflammatory disease. It is very important to see a gynecologist or urologist for the right diagnosis and treatment.
 

It generally suggest to avoid traveling for at least one to two weeks after a miscarriage, especially if you had a surgical procedure or experienced complications. 

It is not recommended that you delay your periods as it can be harmful to your health. Attempts to control your menstrual cycle can result in hormonal disbalance and hence irregular periods. Talk to your gynecologist