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Does — or can — the female body change after the loss of virginity? (The fact that "losing virginity" can be defined in a multitude of ways, not all of which are hetero-normative, makes this a hard topic to discuss, but for the purposes of this discussion, we'll define it as "first vaginal sexual intercourse".)

To some, the very idea is ludicrous, however, it takes only a quick Google search to gain access to a multitude of rather unscientific anecdotes pointing to the idea that many girls indeed notice physical changes after they have had intercourse for the first time.

We'll get straight to the point: there is no scientific evidence that the act of having intercourse for the first time itself leads to physical "symptoms" beyond the possible tearing of the hymen. Why do so many girls say their breasts are bigger and they appear more rounded in the abdominal area after they have sex for the first time, then?

Here are the possible explanations I could come up with:

  • The Centers for Disease Control and Prevention (CDC) indicate that most US females lose their virginity during their teen years. This coincides with a continued phase of pubertal development, which is inherently linked to physical changes including breast growth and increased curves. You may think your physical changes are caused by losing your virginity, in other words, but good old puberty could be to blame instead. 
  • You are seeing the physical changes associated with general sexual arousal, but attribute them to losing your virginity because you are noticing them for the first time. These changes include increased blood supply to the labia (causing your genitals to look different), an increase in breast size of up to 25 percent, and larger areolae. 
  • You didn't undergo radical physical changes at all, but rather mental changes. Now that you are physically romantically involved, you are seeing your body in a way you previously didn't. 
  • You lost your virginity during the luteal phase of your menstrual cycle, at which point it is common to notice more sensitive breasts and abdominal bloating. 
  • Persisting physical changes such as a bloated abdomen and larger and more sensitive breasts could point to a possible pregnancy — which most certainly leads to physical changes even if losing your virginity itself dies not.

Should points one to four offer possible explanations for the physical changes you have perceived after losing your virginity and you are sure you are not pregnant because you have already had a period since and were having safe sex anyway, there is nothing to worry about. As you delve more deeply into the realm of sexual exploration, you will get to know your own body better in this particular context, and will probably cease to notice the changes after a while. Pubertal development, too, finishes at some point. 

Should there be any chance that you are indeed pregnant, you will want to be aware, if you are not already, that home pregnancy tests offer accurate results from the day on which your period was due. Early pregnancy tests that respond to lower levels of the hormone they look for (human Chorionic gonadotropin) may be able to give you results up to a week before your period is due, but have a much higher chance of leading to false positives.

If you have lost your virginity over the last 72 hours and there is any chance you could become pregnant even though you don't want that, the morning-after pill can come to your rescue.

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