Tender tummy.....

BG
I'm 8 weeks pregnant with twins (this is my first pregnancy) and my stomach is tender to touch. It's not horrible pain, it just kinda feels like I'm bruised. Should I be worried or is this normal? It took me 5 years, 4 rounds of IUI, and 2 rounds of IVF to get these babies. I just don't know what is normal or not. Thanks for any help!