Congrats sa baby number 3, mama! Maraming tao dito ang dumaan sa ganitong setup, honestly, ang biggest adjustment ay pag-expect na hindi mo kaya gawin lahat perfectly, which is totally okay na isipin ngayon pa lang while you're adjusting to the news.
The truth is, may demanding phase talaga when your newborn arrives habang ang toddler mo pa rin needs tons of attention, pero maraming parents swear na mas madali second time around dahil you know what to expect, plus your 6-year-old can actually help (kahit small tasks lang). What helped most parents I know is to start preparing your son and daughter na may baby brother or sister coming, involve them, and realistic expectations lang with your partner kung paano mag-adjust ang chores and support, kailangan talaga ng teamwork. Good call na may check-up na scheduled, para ma-discuss mo din everything with your OB, okay? You've got this.