Feeling sad, mad or anxious for no apparent reason Smells are bothering you because of a heightened sense of smell Bloating, cramping, gas and constipation Peeing more frequently Sharp pains in your nipples Hot flashes and sweating Dramatic mood swings Can There Really Be Early Pregnancy Signs Before I Miss My Period? The early signs and symptoms of pregnancy can feel almost exactly the same as the signs and symptoms that your period is coming. Thanks to those drastic hormone fluctuations, PMS and pregnancy can feel almost the same cramps, light spotting or bleeding, moodiness, etc. Although they may be slight, you may be able to catch them if you know what to look for. Maybe, but maybe not. The reasons for each of these strange sensations is described below.