My boobs got bigger?

I am on the pill and a couple days I noticed my boob size has increased. I am almost done with the 3rd pack of a new pill I switched to. I am fairly sure I am not pregnant and my boobs aren’t sore or anything, just maybe slightly larger? Even my bf said they looked bigger. I’m a couple days from my placebo week which I will be taking. Thoughts? I am sexually active but I take my pill religiously so I don’t think it’s pregnancy. I haven’t had any other symptoms anyways. Any input is helpful!!