Hi thanks for your question,you are 10 week pregnant , had slight spotting for which you were prescribed progestrone
,and your also taking thyrox
daily and your feeling ascidity problem along with throat burning.Dear pregnancy
itself is a hyper acidity state and gastric emptying time is delayed and drugs your taking increases the acidity,the throat burning which your feeling is due to reflux esophagitis
which again increases in pregnancy,since your in early stage of your pregnancy and had spotting ,your advised to avoid much medication till you complete your first trimester after which you can take medicine for hyper acidity,still your advised to consult your gynecologist .