Whew!  So you have made it through the first trimester, one third down, two thirds of your pregnancy to go.  For many women, the second trimester is easier than the first, as nausea and vomiting usually stops, baby's movements begin to be noticed between 18 and 20 weeks and the risk of miscarriage is dropping.

 

Links 

Good information is available from sites such as raising childrenpregnancy, birth & baby,  RWH and MMH.  
Pregnancy and exercise
Pregnancy and alcohol
Quit smoking support
Food safety
Breastfeeding information from ABA (yes, start thinking about it now!)
COPE is doing terrific work talking about the emotional aspects of pregnancy. Mind the Bump is a useful app both during pregnancy and after baby is born.
Information on the pelvic floor