Some signs of pregnancy might appear shortly after the date of conception, explains the University of Maryland Medical Center, sometimes even before the date of your next period and before you can take a pregnancy test. These symptoms commonly or occasionally accompany early pregnancy, although unfortunately, none of them definitively prove that you have conceived. Even a missed period doesn't prove that you're pregnant, reminds the American Pregnancy Association, since it could result from other causes, such as hormonal problems, weight changes or stress.
Sore or Changing Breasts
Your breasts may feel especially sensitive or uncomfortable, states MayoClinic.com, or they may grow larger. Your nipples may appear darker, adds the University of Maryland Medical Center, or they may leak a bit of milk. Rising hormone levels cause these symptoms. Changes in your breasts may provide one of the first indications of pregnancy; some women notice breast-related signs only a few days after they became pregnant.
You may experience morning sickness, which is feeling occasionally or frequently nauseated. This symptom results from increased hormones, which change the way your body digests food, and from a heightened sensitivity to smells, explains MayoClinic.com. The expansion of your uterus, adds the University of Maryland Medical Center, also contributes to nausea in early pregnancy.
According to the American Pregnancy Association, you may feel unusually tired or lethargic as early as a week after conceiving. The University of Maryland Medical Center explains that after conceiving, your body begins to spend a large amount of its energy on expanding the uterus and forming the baby. Pregnancy hormones also cause fatigue.
Cravings and Aversions
Because of hormonal influences, you may experience food cravings or aversions, explains MayoClinic.com. Of course, it's normal to want your favorite snacks or avoid meals you dislike. However, if you crave foods you don't usually enjoy or if you feel repulsed by foods you previously found tasty—or if your cravings and aversions seem stronger than usual—then you may have recently conceived.
Aches and Pains
When you conceive, your body creates more hormones than usual and undergoes various physical changes as it prepares to accommodate and nourish a fetus. As a result, you may experience various aches and pains. In particular, describes the American Pregnancy Association, you may suffer from mild headaches and dull aches in your lower back. You may also notice some spotting or abdominal cramps.