Aww, how exciting na makikita mo na ang gender next week! Honestly, nesting kicked in for me around 20-21 weeks, kaya you're right on schedule, some moms start a bit earlier, some later, pero karamihan around 5-6 months na talaga ang energy hits. I'd say go ahead with your ultrasound and maternity leave plans, because after you find out ang gender, yan talaga ang bigbang ng nesting energy, lalo na pag excited ka na mag-arrange ng nursery at bumili ng baby stuff!