7 weeks and nervous

Annah
The past week has been very stressful for me!  I felt very much like a preggo the last couple weeks.  But this past week I feel more normal.  My boobs are still so swollen and hurt, but my belly isn't as bloated.  I'm nervous something has happened to my baby.  Plus I've never gotten sick yet, not had any cravings or adversions to foods or smells.  Am I just dealing myself out?  Or could there be something wrong?!  My first appointment isn't until October 21!  Am I just getting more comfortable in my changing body?  Anyone else experiencing this?