Grass Worries

For those who have been following my grass-growing saga, the news may not be very good. I'd say about only 60% of the lawn has grass coming up in the three weeks since I've seeded. I was really hoping for more density than that. I know that grass can fill in and may take a season to do that, but I'm worried as I see weeds starting to creep in already. I wanted the grass to come in to crowd out those weeds.

Perhaps I should have gone with the sod instead. For a few hundred more dollars I'd have a beautiful lawn already with no weeds.