depression from being off birth control?

shelby
I've been taking birth control for over 2 years and my refills last the entire year, but I ran out last Saturday and since my new insurance doesn't start until February 1st, I'm not able to refill until then. 
Since I've been off of the pills I've felt really depressed, lethargic, and basically drained of all emotions. Sooo I was wondering if this is just because my hormones are going through withdrawal symptoms because my body is so used to the birth control
or if I just need to go to my therapist again.