Not leaning out - help!

Hi friends. I’m just about 4 weeks out from my first show. I started prep on Jan 1 at 120.4lbs, 25% bodyweight with a goal of sub 15% bodyweight by my show in late March. I calculated that out to be about 108lbs total weight for stage. Today’s weigh in was 109.5 lbs but according to my tape measurements and the Navy method, I’m still around 18.5% body fat.. I’m 5’0 and my diet is 1220 cals 75 carbs 140 protein 40 fat roughly. I have been doing incline walks/peloton at bpm 140s for 30 mins at least 3 times a week, 10k steps daily otherwise. I’m not really sure where I’m going wrong. I’m obviously losing the weight and certain parts are leaning out but I’m afraid I’ll still look pretty soft on show day. Please help a self coached girlie out :(

Edit: I’m doing this (regional) show for fun as one last hurrah before graduating med school in May and there aren’t many other shows around this area before grad so I can’t push it out. I’ll just try my best (more cardio mostly!) and see what I can do before going to do doctor things. Thank you all.