Maybe pregnant???

My boyfriend and i had sex and the condom broke but he had already came but we didn't know it broke ... Its been 2 weeks already

So I've been having some mood wings and sometimes feeling like throwing up my head hurts I've been cramping a little in the morning and my back sometimes hurt ... Here's a thing I haven't had my period in almost 2½ because I am on depo.. There for I haven't had implation bleeding or nothing but I do have symptoms of being pregnant...

Could I be ??