I am a 28 year old female with and enlarged uterus due to four fibroid tumors( in and on my uterus). I found out recently that I am pregnant but the time frame isn't adding up. I was told by my doctor that I was given a pregnancy test by blood roughly two +weeks prior(and 8 days after suspected conception) and it was negative. Given the extent of my fibroids is it possible that it could affect the accuracy of the blood test.