Honestly, there is no fixed number but usually women can conceive easily till 35. After that also it happens, but proper tests and healthy lifestyle is needed. Don't worry about age too much, focus on basic health and fresh ghar pe bana food.
Actually, it varies a lot from person to person. As long as you keep moving, do light yoga if your gynac has allowed, and eat clean, your body stays ready. I have seen friends conceiving naturally even at 38!
It really depends on your ovarian reserve, sweetie. While biologically mid-30s is considered the limit for easy natural pregnancy, every body is unique. If you've been trying naturally for a year without success, please consult a good doctor, they will guide you with so much care.
Oh god, conceiving is one thing, carrying this heavy belly in the 3rd trimester is a whole different story! But seriously, naturally most can do it till menopause, though 20s to mid-30s is much easier. Right now, even getting up from bed feels like a massive task for me, haha!
My apps always showed fertility starts dropping slightly after 30, but many women conceive normally till 35-40. I tracked my ovulation cycles using digital kits and trackers, it really helps to know your body's timing. You should try tracking too!