Fear of weight gain

15 weeks now and seeing my weight creeping up is making me slightly anxious. I used to be very overweight and worked really hard over 10 years to slowly lose and maintain my pre preganancy weight within healthy range. My symptoms doesnt allow me to do strength training as much as I would like and seeing the muscles becoming flabby upsets me too. Anyone shares same sentiments? How do you accept the incoming changes to your body?