Lower body progressing butt not upper body

[Norhang]

Hello-

I've been following this program alternating between workout A and B three days a week.

Workout A
Squat 4x8-10
Oh press 4x4-6
Deadlift 2x12

Workout B
Squat 4x8-10
Bench press 4x10-12
Bent over row 4x10

My lower body exercises have steadily increased but my upper body exercises I can barely make an additional rep or no new reps.

My body weight has increased at a lb a week so far with minimal fat gains (looks like 1:1 ratio).

What am I doing wrong? Is it because I train legs more often?

Any insight would be helpful! I'm also a nursing mom on keto and finally seeing small gains with it.

[snailsrus]

Keto and breast feeding I don’t recommend, have you talked to your doctor?

You need more volume on arms, you’re missing muscle groups