My husband and I have been ttc for about a year. My cycles are 25 days apart. I am supposed to start my period in 2 days. I think im on cd 10. According to my calculation implantion would have happened around friday the 21st. I had blood work for pregancy on the 21st in the morning. I got my results back and my doctor says its negative. My hcg levels on friday were <6. Is there anyway i could be pregnant? I thought if my results were <5 it was negative. The last time i had blood work done was several months ago and it was <2 which is obviously negative. Ive never got a <6.