pregnancy test

[Sumo32]

Is it possible to have a negative urine pregnancy test and then have a positive blood test?  Next fri. I am to go in and do a urine test and a blood test.  They said I would get the urine test right away but the blood test they would have to call me later on.  Just wondering if I get a negative urine test is there still hope for pregnancy?  Also they transferred 2 embryos so would you be able to tell if there are still 2 if the HCG level is high?  The doctor told me that I wouldn't know until the 6 wk ultrasound if there was twins but I've seen people mention that the hcg level is higher for twins.  Any input is appreciated.  

[daisybelle354]

I had my frozen transfer last fri I did a hpt today Saturday 8 days later and got a negative result, have I done it too early?

[Sumo32]

Thanks for the reply and congrats on your little one.  I decided I am not going to do my own home pregnancy test and just wait for the one at the clinic.  I don't want to get a false test either way.  Thanks again for the info!

[worththewait78]

When I had my 5-day transfer, I was wondering about this too.  I tested 5 days post transfer with a hpt and got a negative.  But both of my betas (blood tests) were positive, so it must have been too early.  Now I am 14 weeks pregnant! :)  So it depends on how early you do a urine test.

Maybe the following information will be helpful to you.  Oh - also you can't tell by HCG levels alone whether or not you are carrying twins.  My HCG levels were really high, but we only have one little baby in there. :)  Your doctor is right.  YOu can't know that for sure until your first ultrasound.  Mine was also at 6 weeks.

Best of luck and lots of baby dust!!



What Happens After an Embryo Transfer?
Once you complete your embryo transfer, you will have approximately 1½ weeks to wait before a pregnancy can be detected. The following tables outline an approximate timeline for what happens during a successful pregnancy after a 3-day transfer (3dt) and a 5-day transfer (5dt).

3-Day Transfer

One
The embryo continues to grow and develop, turning from a 6-8 cell embryo into a morula

Two
The cells of the morula continue to divide, developing into a blastocyst

Three
The blastocyst begins to hatch out of its shell

Four
The blastocyst continues to hatch out of its shell and begins to attach itself to the uterus

Five
The blastocyst attaches deeper into the uterine lining, beginning implantation

Six
Implantation continues

Seven
Implantation is complete, cells that will eventually become the placenta and fetus have begun to develop

Eight
Human chorionic gonadotropin (hCG) starts to enter the blood stream

Nine
Fetal development continues and hCG continues to be secreted

Ten
Fetal development continues and hCG continues to be secreted  

Eleven
Levels of hCG are now high enough to detect a pregnancy



5-Day Transfer

One
The blastocyst begins to hatch out of its shell

Two
The blastocyst continues to hatch out of its shell and begins to attach itself to the uterus

Three
The blastocyst attaches deeper into the uterine lining, beginning implantation

Four
Implantation continues

Five
Implantation is complete, cells that will eventually become the placenta and fetus have begun to develop

Six
Human chorionic gonadotropin (hCG) starts to enter the blood stream

Seven
Fetal development continues and hCG continues to be secreted

Eight
Fetal development continues and hCG continues to be secreted

Nine
Levels of hCG are now high enough to detect a pregnancy