Hello Adamaro.
Welcome to the board.
How long have you been taking pm?
Unless you happen to be one of the few who is very sensitive to pm, you'll probably need a dosage higher than 1,000 mg to trigger breast development. 2,000 mg is the baseline I recommend for bio-males. When I started pm, I ramped up to 3,000 mg. I definitely got some development going, but several weeks after taking 3,000 mg, I experienced some estrogen dominance symptoms.
When ramping up your dosage, I suggest paying careful attention to your body, specifically symptoms of estrogen dominance and soreness or other sensations in your breasts. Once you get the sensations in your breasts, you're on the right track for dosage.
I also recommend taking progress pictures of your breasts. I find it very helpful to get feedback, especially when you're uncertain of whether you're achieving changes with your breasts.
Good luck with your NBE journey.