SO CONFUSING!!!

I am taking fertility treatments. I am on my second round using letrizole and metformin. my doctor had me start formin asap but my letrizole started day 5-9. will that make me ovulate during those days? or is it preparing me for day 14 when you're "supposed" to ovulate? am I ovulating now??? I took a test and I'm positive. is that just the medicine or am I ovulating? I'm so confused with all of this. Help!