Starting the Opill birth control for breast enlargement can be risky. Use of birth control pills for a long time can cause problems such as high chances of blood clots, weight change, and emotional state. The hormone progestin in the pill can affect my levels of hormones. There are also claims that birth control pills made of progestin can affect the production of hormones. Consult your healthcare provider to make a safe decision and avoid risking negative consequences. 

FMGA surgery DOES NOT allow for biological pregnancy.. 

It is usually not recommended to get top surgery at 13. One should atleast be 18 years of age to get top surgery. 

Usually, top surgery is suggested when you are 18 or above the age of 18. But you can get top surgery at 16 if you have your parents approval and after consulting with a qualified doctor. 

In case you are thinking about using the FTM hormones and having surgery to get a perfect result in New Delhi, it should be pointed out that this practice is a part of transitioning from female to male people. Gender dysphoria is generally expressed through the person's feeling that the gender identity that the person was born with is inappropriate and does not agree with the person's innate gender. Hormone therapy and surgery can help reunite gender and sex. Make sure to approach a specialized doctor in New Delhi who has the necessary experience in providing these treatments for the best outcomes.

There are non-surgical options to consider. Methods involving hormones that cause breast development, such as the administration of estrogen or the use of progesterone, could be effective. The use of the hormonal valve of these aids is advised only medically and not as a means for self-reliance since it can have side effects on health.  I advise you to get in touch with a healthcare professional for a consultation so they can give you the right advice and direction considering your health condition and also investigate the effectiveness of the treatment. 

Men who are transgenders assigned female at birth still possess uterus, and consequently continue to menstruate as normal. Hormone therapy commonly used in the gender transition brings about a significant decrease or cessation of menstrual bleeding. In order to get personalized advice regarding the management of menstrual health for those going through gender transition, a specialist in transgender medicine or endocrinology needs to be consulted.

If you don't take testosterone or undergo top surgery, you can still build your pecs by lifting weights. Pecs, short for pectoral muscles, can grow with exercises like chest presses and push-ups, which target these muscles. Pace yourself, use the correct form, and be consistent with your workouts. Your pecs can still develop even without testosterone.