Suggest Remedies For Absent Periods And Over Weight

im 32 years old im divorced i had one kid baby bod 10 years olf just got divorced now 2 years back but im going to marry some one else and i make relations with him once in a week becoz i dont get time im doing job im missing my periods from last 6 months no periods but just gone to doctor and now she had given me medicines so first time periods came but not in proper way very less and my weight is 70 kgs i want to become slim reduce my weight as my job is sitting i work in evening also and in morning as well both sitting jobs pls suggest me some way out