Help my weight loss has stalled !

Hi everyone so I’ve been on a calorie deficit since Feb 24, 2025 my starting weight was 249 and March 24 at my weigh in I was 242.6. I weigh everything I eat on a food scale and track all my calories and usually eat around 1300 calories& 120 grams of protein. I walk for two hours everyday averaging around 12k steps daily and do Pilates 3 times a week and somehow my weight has stayed at 242.6 since March 24th. I did stop breastfeeding after 16 months around March 10th so I’m not sure if my weight has stalled due to hormone changes but if anyone has any advice for me that could help me get out of this “plateau” I would appreciate it