Am i pregnant? help!?

I was taking birth control pills and they weren't in their original container because I took left over pills to make a month since my prescription ran out but I stopped taking them 2 Fridays ago and I started what to seem to be was my period it lasted 2 days and I started taking them during so id stop so I could go get a depo shot instead, last Monday I stopped taking them and nothing has happened since. I've looked it up on the internet and they say you will have a weird metallic taste in your mouth when you wake up I have been waking up with my mouth really dry and a weird taste and it also says that you'll have more "secretions" and I have that too. It doesn't smell or anything but its white like an infection but doesn't burn or itch. I've been really bitchy lately unlike normal and I feel like I am but im only 18 so I don't know what to expect. Any help would be appreciated :)