I stopped taking birth control pills about 3 weeks ago, I was on them for 3 months, but I was on the Depo Shot for 2 years before that... Ever since I stopped taking the pills I have been irritable, extremely emotional,dizzy nauseated and fatigued. I ahve been slightly depressed, but I hear this is normal... I'm starting to worry becasue me and my fiance had unprotected sex a few days before I went off my pill, and I think I missed my period, but I am unsure becasue it has been irregular since getting off of depo... could I be pregnant?