Good day girls! I have a question about teeth ?. How long after the lo…

Good day girls! I have a question about teeth ?. How long after the lower incisors did you get your upper ones? We got our first ones at exactly 7 months, and the upper ones are already 3 weeks swollen and visible white tooth marks but they haven't come through yet. Waiting. There are tantrums and cries at night ?. No fever. Eats as usual.