negative test

Love

So long story short I have been super nauseous, tired, amazing smell, emotional, back aches, headache, feeling light headed, and Having mood swings where I get annoyed faster lol. I took a test because these symptoms were scaring me. it was negative! I was like ok but my sickness has not gone away. I'm 8 days away from starting and Now I'm wondering did I test too early. My boyfriend and I use the "pull out" method and he didn't pull out on time on the highest peek of my ovulation window! What are the odds of that. So question has anyone else got a negative and have actually been pregnant?