A breast contains glands that feel like small lumps. All women have these. At ovulation many women feel their breasts getting tighter with more lumps. After the age of 25 it’s a good idea to feel your breasts regularly to get to know them. Do it with every period and it will become a routine. Even younger women should examine their breasts regularly. If you have a partner, you can ask him to check them again. If you are worried about lumps in your breasts that aren’t supposed to be there, talk with a school nurse, a midwife or a clinic.