My mothers symptoms began at 3 weeks, every women is different. And I am 4 weeks. I got it confirmed.
If you're a month late for your period, you go to the previous period, and usually symptoms don't show up til 6-8 weeks.
Im expecting app has a due date calculater and had me put in the date of my last period. It says im now 4 weeks.
You'd be farther along than 3-4 weeks if you were pregnant, if you think you are 3-4 weeks, then you'd really be 5-6 weeks, 2 weeks are added to how far along you are, because they go back to your last period and start counting from there. All you can do is take a test, or go to a doctor.