Pregnancy Depression?!?

We were trying to concieve our second I am 7.3 weeks... I am on the verge of crying all the time. I have been fighting all day sickness and am just completely down in the dumps?! I feel like I am loosing it. No previous problems with depression other then baby blues after I had my son who is now two. It feel exctly the same? We live away from family so I have bo help. Hubby works long days. Anyone elae expierience this? I am thrilled to be havibg another one but am fibding my fear and this depression feeling is taking over?  😔