Pregnancy and working in field

Recently found out that I am expecting... So my question is how is this going to effect me and my fire family in field (from those who have been through it, either pregnant themselves or had a pregnant team member)??? Any advice? I really don't want to give up runs just yet!!! This pregnancy came as a total surprise! My Chief and fire family seem pretty ok with it since my doc gave me the go ahead... with the exception of lifting no more than 20 Lbs.