1 Sigmoid colon: The final S-shaped length of the colon, curves inward among the coils of your small intestine, then empties into the rectum.  Rectum: The final section of digestive tract measures from 1 to 1.6 inches (or 2.5 to 4 cm). Leftover waste collects there, expanding the rectum, until you go to the bathroom.
In addition to a missed period, the earliest signs and symptoms of pregnancy might include: 1  Tender, swollen breasts. 2  Nausea with or without vomiting. 3  Increased urination. 4  Fatigue. 5  Food aversions or cravings. 6  Next.
Pregnancy symptoms: Top 11 early signs of pregnancy. Could you be pregnant? Some early pregnancy symptoms may show up around the time you've missed a period â or a week or two later. About 60 percent of women have early pregnancy symptoms by the time they're 6 weeks along, and roughly 90 percent have them by the time they're 8 weeks. If you're not keeping track of your menstrual cycle or if it varies widely from one month to the next, you may not be sure when to expect your period.