A few women who are very in-tune with their bodies, especially those who are trying to conceive, may start noticing breast changes as early as now. Sensitive, sore nipples and swollen breasts are not uncommon as one of the very first symptoms of early pregnancy. This is due to all the many hormonal changes happening within your body.
Besides possibly experiencing a little spotting at the time of implantation and maybe tender breasts by the end of this week, your body probably isn’t letting you know you’re pregnant quite yet. There are no obvious physical changes, even though there’s a lot going on inside you. The majority of women have no idea they’re pregnant at this point, because their period won’t be late for another week or so. A few very sensitive pregnancy tests may be able to detect the tiny amount of human chorionic gonadotropin (hCG) that is already being produced by your body by the end of this week, but almost all would give a false negative if taken now. To get the most accurate result, it is best to wait until your period is at least one day late.