Aw mama, hanggang 42 cup size yan sobrang laki talaga! A few of us moms went through the same thing and honestly, yes they do go down after delivery and breastfeeding, but it takes time, some of our circle took months to a year para bumalik closer sa pre-pregnancy size, kaya huwag mag-alala na permanent yan. For now, invest sa comfy nursing bras na may good support pero hindi too tight kasi mas magiging sensitive ang area mo, at if the sensitivity and pain is really unbearable, try moisturizing products made specifically for pregnancy like Mama's Choice Nipple Cream since it's safe to use during pregnancy and breastfeeding and honestly sobrang effective para sa comfort ng area na yan. Cup size-wise, suportahan mo lang ang 42 area mo ngayon because your boobs will keep changing until delivery, then after you stop breastfeeding slowly bubaba na sila, but make sure you have a mix of nursing bras AND regular bras kasi you'll need both during your postpartum journey!