Possible Causes of Nausea and Back Pain

Menstrual cycles are not only affected by pregnancy. There can be many reasons causing irregular periods including stress, weight changes, hormonal imbalance and even underlying medical conditions. It is advised that you seek a gynecologist's help to get a proper diagnosis and treatment.

If a girl has sex before her expected period and then it comes on, she is likely not pregnant. However, some women may have light bleeding or spotting in the early weeks of pregnancy which can be mistaken for a period. If your girlfriend’s cycle was normal with the usual flow for 3-5 days then she is probably okay. Periods are sometimes irregular due to stress among other things so I wouldn’t worry too much about it unless there are other signs as well. 

It's normal to have cycle length variations. Factors like stress affect cycle regularity. A 28-33 day cycle is still regular.. . See a doctor if bleeding is HEAVY or PAINFUL. 

Your period brings a bit of we­ight gain. That's normal. You retain extra water. You fe­el bloated and heavie­r. Drink lots of water. Avoid salty foods. That helps reduce­ water retention. Do light e­xercises. Eat a balanced die­t. These steps can manage­ the temporary weight gain.

Brown discharge before period may indicate implantation bleeding . Wait for missed period and take a pregnancy test .. If positive, consult your GYNECOLOGIST for further advice. 

High levels are normal in pregnancy, but if they are too high, check with gynaecologist for infections or inflammation