Hala, no need to apologize! That's actually a good question and honestly maraming mommies ang confused din dito. The darker stool from Iberet usually means the iron is there, but if it changed to yellow-brown with Hemeup, it doesn't necessarily mean you're not absorbing it, baka mas gentle lang ang formula na yan sa tummy mo, lalo na with the lactulose ka na for constipation. Marami sa circle ko actually nag-switch ng iron brands during pregnancy dahil ang dating one wasn't sitting well, kaya likely alam ng OB mo what she's doing. That said, since ang concern mo is absorption, I'd really suggest bringing this up sa next OB visit so she can check if your iron levels are still good, she'll have you do a blood test if needed para sure na tumatanggap ang katawan mo ng sapat, especially importante yan during pregnancy. Ang pag-poop araw-araw is probably mas okay na actually since less constipation ka with the lactulose, pero the iron absorption part talaga best reassured ng doc!