Worried & Confused!

CrystalRose
So, a week and a half ago, I found out I was pregnant! I was having a annoyingly sore breasts the week leading up to testing, (it's what made me take a test). Lots of BFP to my surprise!! 
So I called my OBGYN and made an appointment ASAP. Got one set up for November 28th! He also ordered an HCG test for this past Friday 11/04, got it done and he called today 11/07, my levels were 111. That sounds low to me? He wants me to take another HCG test tomorrow to make sure the levels are going up. This is my second pregnancy, I never had any of this with my Daughter.. lol. But for the past week, I've been SOO achy!!! I'm sore, I feel like I have cramps, my back is sore and annoyingly a little uncomfortable at times. Is this normal? I'm hoping for the best, I would hate to have a miscarriage. ): Anyone Else get these symptoms super early?