I have not began my period but i feel like nauseous. i calculated my lmp and it says o shud be about 5 weeks.is their a possibility i can be pregnant?

Find cause of nausea: Nausea may be gi-related (food poisoning, peptic disease, gastroparesis, due to biliary ; pancreatic disease, gas/bloat syndrome, small bowel problems). Consider "central" causes: motion sickness, vertigo, migraine headache, brain problems (some very serious). Also, rule out infection (? Urinary tract), medication side effects, pregnancy, ; even reaction to stress. Find ; treat the cause--see doc.

If you have been: Sexually active then pregnancy is possible. Take a home pregnancy test to know. Reasons for missed/late periods: low body weight, obesity, marked weight ^ or v, over-exercise, endurance athletics, breast-feeding, ^ stress, illness, eating disorders (bulimia or anorexia), anovulatory cycle (no egg released), travel, hormone irregularities, drug use, meds (i.e., birth control) or medical problems.