Peeing a lot and boobs tender

So I had sex (with condom + pull out) on the 14th, 15th, and 16th. My period is due in 7 days (I am on the birth control pill and have been on it since last month, August 13th). Has anyone else experienced peeing a lot more than usual? I drank the same amount of water I always do. Also, my boobs are really tender. Is this a sign of pregnancy? I know it’s too early to be pregnant, I’m just so worried. Is it from the birth control pill? Is it PMS? Help a worried girl out lol