Can Ayurveda Cure Uterine Fibroids Quickly?

It's quite natural for some mild spotting to occur after intercourse, especially towards the end of your cycle. The dark brown spotting you got could be some of the blood from earlier times coming out. It is nothing to worry about, and it sometimes occurs when your body is getting used to the birth control pill. It will probably pass away by itself in a little while. 

Eve­n if complete insertion didn't occur, pre­gnancy remains a possibility since sperm can still re­ach the egg. Immediate­ symptoms might not manifest, but missed periods or bre­ast tenderness could be­ early indicators. Taking a pregnancy test provide­s confirmation. It's important to understand that an intact hymen doesn't pre­clude pregnancy. 

If you have taken four tablets of misoprostol as part of a prescribed regimen, then the specific instructions and subsequent steps will depend on the purpose for which the medication was prescribed. The instructions differ based on the factors such as the gestational age, medical history, and individual circumstances.

A bad odor during periods can be a symptom of an infection. It could be bacterial vaginosis or an STI. Kindly go to a gynecologist for the right diagnosis and treatment.
 

She must have an infection or an injury somewhere on the vaginal area. I recommend that she should go to see a gynecologist to get the specific diagnosis and treatment. On the other hand, don't be active sexually to prevent the situation from getting worse or having further complications.