REVIEW OF RELATED LITERATUREChild conception among women can trigger hormonal imbalances within a mother’s body throughout the duration of pregnancy. Changes inside and outside the body are aided with these hormones to carry out the normal bodily functions of the mother and the fetus. As these hormones help the growth and development of the fetus inside the womb, they might leave negative impacts in the mother’s system during and after child delivery. These changes can spark adjustments of the levels of significant hormones from the first semester to the fourth semester of pregnancy. (Baan, A. V., 2016) Different symptoms can be attributed to these imbalances which must be taken seriously to prevent further complications and disorders that may affect the mother’s health and well-being. These signs and symptoms are the body’s way to request for assistance in restoring the balance of these hormones which must be given attention and care properly.Among the endocrine problems that may arise within the duration of child’s conception in a mother’s womb, thyroid disorders are among the common ones to pose problems on the latter stage of woman’s pregnancy. These disorders may come in different forms but studies have shown that overt and subclinical thyroid dysfunctions leave adverse effects on both the mother and the fetus during childbearing. (Suha, et al., 2009) With the advancement in the assessment of thyroid function, it has been found out that the prevalence of thyroid disorders is high in women during the childbearing age especially during pregnancy and postpartum.According to Lazarus, J. H. (2011), pregnancy greatly affects the amounts of thyroid in the body which are attributed to several factors. First, an increased removal of iodine in urine causes an increase in the volume of thyroid hormones in thyroid-deficient areas. Meanwhile, maternal goiter and decreased amount of thyroxine (T4) are pointed out as the reasons behind iodine deficiency during pregnancy. Also, there is also an increase in thyroxine-binding globulins (TBG) which is brought about by the enhanced synthesis in the liver and decreased rate of degradation caused by the modification of oligosaccharide. When it comes to thyroid dysfunction related to pregnancy, hypothyroidism has come out as more common in pregnancy than hyperthyroidism. In a study conducted by Allan, W.C., et al. (2000), it is found out that most cases of thyroid disorders lead to fetal deaths which are particularly attributed to hypothyroidism, or the lack of thyroid hormones in the body. The researchers have come out with the results based on different methodologies from which the data for this study are taken. Measurements of TSH were done along with other assessments to identify other factors associated with the changes in thyroid levels inside the body of a pregnant woman.From assessing the impacts caused by various thyroid problems, De Groot, L., et al. (2012) has set a study to update the guidelines regarding the management of thyroid dysfunction during pregnancy and postpartum which were previously published in 2007. In doing this, evidence-based approaches are considered for the assessment, treatment, management, and screening of different thyroid problems that may interfere with the body’s normal functioning. Due to the absence of actual symptoms and serious increases in metabolic activities during normal pregnancy, thyroid dysfunction (TD) may be overlooked in pregnancy. (Nambiar, V., et al., 2011)It has been revealed that imbalances on various hormones found in the mother’s body bring significant effects on the mother and the fetus that may be beneficial or harmful to either of the two during the course of pregnancy. Therefore, it is necessary that management, treatment, and screening for possible complications for both mother and child caused by hormonal level adjustments in the body must be regularly done. Areas of concern and interest upon reviewing the related pieces of literature greatly focus on the hormonal imbalances’ actual impact on the body of a teenage pregnant woman upon childbirth particularly in her reproductive system which must be assessed to manage any disorders brought about by these changes. Only a few studies have been made and published regarding the discussion on the health consequences experienced by Filipino pregnant adolescents due to the adjustments of the levels of certain hormones in their body. Through this study, the researchers are looking forward to widening the perspective and raise awareness within the Filipino society on the sides of young Filipino mothers. Significance of the Study Our study is relatively helpful towards the young female population of the country as well as the maintenance of the female reproductive system and all the hormones produced that work within each organ. It is vital to understand the roles of hormones among teenage mothers, especially those that are only produced during pregnancy. We also wish to evaluate the reproductive health of teenage mothers after child labor, specifically, within or a year after. Lastly, we would like to study the severity of the impacts of childbirth and its effects on the overall hormone production of a female adolescent including hormones only produced during pregnancy. Identifying the implications of an amount of a hormone in the body of a female adolescent will allow further studies on possible differences in the pregnancy of a female adolescent than that of a grown, adult woman.