Pregnant with my first child! :)

After missing my period for about 5 days (my periods are often irregular plus I had recently started an exercise routine so I didn't really think anything of it at the time) I took a test last Saturday (April 25th) and it came out POSITIVE! [Three times :)] I went to the doctor the following Tuesday to confirm pregnancy and as of today I am 5 weeks and 4 days :) but I'm worried cause I don't have any symptoms except my missed period and being tired.. I thought I would feel a whole lot more symptoms by now.. just scared since it's my first pregnancy and I don't really know what to expect. Can't wait to see how our little shrimp is doing! :) We're praying for good news!