Uy, I get it, gusto mo magpaganda but worried about the chemicals affecting baby or your milk! Honestly, a few of us waited until after 6 months postpartum bago nag-color, but if kailangan mo talaga ngayon, best to talk to your OB muna para sure it's safe for your situation. One of my mum friends swears by ammonia-free or plant-based dyes na mas gentle, and she did it when baby was 3 months in, pero lagi siyang nag-open ng windows at nag-ventilate well habang naka-nurse pa lang. The safest move talaga is consult your doctor para walang worry, kasi bawat mama at baby ay different!