Why Haven't I Had a Menstruation at 16 with Mild Abdominal Pain?

Bleeding could be due to a condition called postmenopausal bleeding. This may mean a severe health condition. Please see a gynecologist for more evaluation and treatment.
 

I recommend that you should see gynecologist to do the ultrasound to find out the reason for your bleeding. This is quite critical during your first term of pregnancy.The right one to see is an obstetrician or gynecologist.

Don’t worry if your Primulot N dose timing was a little off. If you took it every 6 hours rather than 8, you might experience some slight spotting. The reason for this is that your hormone levels change. To solve the problem, take your medicine after every 8 hours as directed. This adjustment will help to normalize your hormone levels and prevent any bleeding. 

Someone ge­ts pregnant after unprotecte­d intimacy when sperm mee­ts egg. Once pregnant, the­y won't conceive again without more intimacy. If you have­n't been intimate since­ conceiving, you won't conceive ane­w.

The taking of any medication during pregnancy should not be done unless it is recommended by a doctor. Principle Ferite tablet includes an iron supplement that is perhaps beneficial and not useful for a woman in the 4th week of her pregnancy. The safest option before using any medication during pregnancy is to contact an obstetrician or gynecologist for a recommendation.

If a person has symptoms such as tiredness, nausea, and breast tenderness because they missed a period then she can be pregnant and this would mean that the egg has attached itself to the lining of her womb. One should confirm this by testing using their early morning urine sample since it is more concentrated thus likely giving correct results.