Hi, I Started Dianette Birth Control Last Month After Switching

Hi, I started Dianette birth control last month after switching from Linessa 28. I started taking Dianette on the day after my last inactive pill. I have had sex twice this month, both times during my period, during the inactive pills of Linessa. A condom was used both times without breakage. I've been on my pill break for 3 days and no period yet. I've had sore breasts throughout the month and a lot of bloating recently. Are these symptoms due to switching pills or my period? Or could I be pregnant?