My last period was in May 15-22, it's now July (I had a previous miscarriage at 8 weeks but other than that pregnancy I 'ave never skipped a period) and I am 'aving symptoms of pregnancy but all the home test I take come back either inconclusive or negative. Is it possible that my hormones are too low to show up on a hpt? If I am pregnant, would I be far enough along to show up if I had an ultrasound? Thank you for any help or advice you could give me!