I'm stating to feel depressed a lot more now then I have my whole pregnancy I'm 26 weeks and I get more upset over littlest things. Is this normal?

This can be. Shifts and changes in your hormonal levels throughout pregnancy can have an effect on mood. Also, as you begin to approach your due date, your anxiety may increase especially if this is a first baby. Also inability to sleep through the night can cause irritability as can physical discomfort such as muscle ache and fatigue. Increased social demands and expectations may also play a part.