Hello dear first of all many congratulations.
How much weight you gained in this period, if its more than 10% of your original weight then need to reduce it with more discipline and full motivation.
Next Steps
Dtink around 2 to 3 ltr of water
Eat healthy balanced diet devided into 3 main and 3 small meals comprising of more fibre and less oil,like whole pulses ,fruits and vegetables less of refined food items and readymade products.
Start doing minimum 50 mnts of physical activity of your choice.
Health Tips
tell your daily routine, eating habits, hereditary factors as well as history of any other ailments to know the exact reason like digestion power, periods problem etc. and plan your personalised diet accordingly.