It’s hard to accurately explain the level of change your breasts will go through during pregnancy, even if their outward appearance doesn’t seem that affected. On average, a woman’s breast size will grow by one cup during the course of a pregnancy but this is not set in stone, in fact some women report that their breasts barely change at all. But even if your breasts aren’t growing in size, you’re likely to notice that there are other changes afoot. Tenderness, tingling sensations and sensitivity are all side-effects of your breasts beginning to prep for milk production. Once you experience these symptoms then you breasts are likely to grow. But…