OBGYN switched bc on me?

Samantha
Hey ladies! I was one Gildess fe for three months (what I was on before made me moody, and previous to that I was on gildess because minastrin got too expensive). She switched me back to gildess after my mood swings with the other one but she only had the prescription for three months. So I called the office and they said they'll have her renew it, which she did. However, when I got the pills, it wasn't gildess but larin 24 fe. Im assuming it's an off brand, but the gildess had a 7 day placebo, where larin has a four day placebo like minastrin. should I be calling the obgyn and making sure this isn't a mistake? I'm going to have to start taking it anyhow tomorrow because my last break day was today. Sorry this is so long but thank you for reading! :)