When I was staying with my parents, I started feeling very nauseous and tired around the 6th week, right after my missed period. My mom instantly knew I was pregnant before I even tested!
Don't expect symptoms on day one. Most women start feeling tired or nauseous around the 5th or 6th week. Just wait for your missed period and take a test, that's the only real way to know.
Honestly, for me, the symptom was wanting to sleep for 24 hours straight around week 5, haha! Some feel it early, but usually, the real symptoms like nausea kick in after you miss your period.
My mother-in-law told me symptoms start after the second month, but I started feeling very exhausted by week 5. Trust your body and always discuss any sudden changes with your doctor.
Usually, you start noticing changes like breast tenderness or mild fatigue around 5-6 weeks. Eat light, homemade food if nausea starts, but if you feel severe pain or heavy vomiting, contact your doctor immediately.
It usually starts around 5 to 6 weeks, but please remember every body is different. Don't worry if you don't feel much early on, but do stay in close touch with your doctor for peace of mind.