Time will tell, OP. Due to a history of ectopic pregnancies I had 10 mIU sensitivity home pregnancy tests and immediately followed any faint positive with blood work. My successful pregnancies were caught around 9-10 DPO and bloodwork showed hcg of about 9-11 for each.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:It's not about the first number, what's important is whether or not it doubles every 48 hours. So keep getting tested and if HCG keeps doubling should be fine.

Everyone says this but it's not true. The first number is the most predictive.

That's not true at all.

it is true.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3341449/

early hcg is as good a predictors of successful pregnancy as age. also, the second measurement adds nothing. read the actual article

The doubling time can tell you a lot. Slow rising betas are a red flag that something is wrong.

yes, the things is when the initial beta is high, beta usually keeps doubling.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:It's not about the first number, what's important is whether or not it doubles every 48 hours. So keep getting tested and if HCG keeps doubling should be fine.

Everyone says this but it's not true. The first number is the most predictive.

That's not true at all.

it is true.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3341449/

early hcg is as good a predictors of successful pregnancy as age. also, the second measurement adds nothing. read the actual article

The doubling time can tell you a lot. Slow rising betas are a red flag that something is wrong.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:It's not about the first number, what's important is whether or not it doubles every 48 hours. So keep getting tested and if HCG keeps doubling should be fine.

Everyone says this but it's not true. The first number is the most predictive.

That's not true at all.

it is true.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3341449/

early hcg is as good a predictors of successful pregnancy as age. also, the second measurement adds nothing. read the actual article

That was specific to IVF pregnancies, where the embryo transfer date is known. That is not applicable in a natural pregnancy where the ovulation date is an estimate.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:It's not about the first number, what's important is whether or not it doubles every 48 hours. So keep getting tested and if HCG keeps doubling should be fine.

Everyone says this but it's not true. The first number is the most predictive.

That's not true at all.

it is true.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3341449/

early hcg is as good a predictors of successful pregnancy as age. also, the second measurement adds nothing. read the actual article

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:My first beta at 4 weeks (two days after expected period / prob about 14 days post ovulation) was 128. At that level, I did a hpt day before blood draw and could barely detect the line. Rates more than doubled and I'm currently 15 weeks along.

HPT is sensitive at 30, so 128 is a solid line.

Np. Some tests are more sensitive. I had a faint BFP (on a FRER), went in next morning for a draw, and my hcg was 16.

I should add that it was a successful pregnancy.

Anonymous wrote:

Anonymous wrote:My first beta at 4 weeks (two days after expected period / prob about 14 days post ovulation) was 128. At that level, I did a hpt day before blood draw and could barely detect the line. Rates more than doubled and I'm currently 15 weeks along.

HPT is sensitive at 30, so 128 is a solid line.

Np. Some tests are more sensitive. I had a faint BFP (on a FRER), went in next morning for a draw, and my hcg was 16.

Pp with 128. That was a Sat am blood draw. My Thurs pm home pregnancy test was a very faint / barely observable line and same thing Fri am. I showed my DH and he agreed it was likely positive but very hard to see / read.