Boobs killing on bc?

Melisa • 35, Finally pregnant with #1 after IVF!! Due in May 💗
So I haven't been on birth control in at least 5 years, and now I've been on it 3.5 weeks and my boobs have been so so sore and got bigger to the point that none of my bras fit! Did anyone else go through this? 
OMG, if they hurt this much and I haven't even started injections, what's that going to be like??