question: hello, i am 20 yrs old, married and currently trying to get pregnant. i am 12 days late and been having lower back pains, mood swings, loss of appetite , nausea and discomfort on the left side of my ovary and cramps that come and go...i took a test a week after intecourse and i got a very fain positive then two days later i took another test and got a negative im confused.... oh i had intercouse on the 5th and now its the end of the month