I am 31 years old and had unprotected sex while ovulating, i have never been pregnant before but have had various problems with regards to infections etc. In the last 6 months its the healthiest i have felt ever (sexually i.e.). Anyway i am experiencing nausea, queasy, frequent urination, little lightheadedness, food tastes sweet, mouth has asweet taste, and water very leady...do u have any suggestions as to what could be the problem?