i was about 3/4 wks pregnant but last month on the 24th had a miscarriage i had unprotected sex after i am starting to have simptoms of been pregnant again feeling sick,the metal taste in your mouth you get,headaches and tiredness.i took a pregnancy test 2 days ago and it said negative but i still havent had a period i feel like i was when i was pregnant before could i still be pregnant when should i take another test.