Getting off birth control pill

My bf is leaving for basic and I was thinking of just getting off birth control since I don’t really need it anymore. He’ll be gone for 10 week then coming back for 2. In those two weeks we can just use condoms. After, he’s leaving again for I believe 8 months at one location and relocating to his final base. Anyways, long story short he’ll be gone a long time. I just don’t see a reason to be on the pill anymore. What were some side effects (if any) did you experience? I heard that some women’s boobs got smaller.