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TESTS · BETA HCG PREGNANCY BLOOD TEST
Beta hCG is a blood test that measures how much pregnancy hormone is in your blood. After fertility treatment it answers two questions: has an embryo implanted, and is the level rising as it should?
Urgent: same-day care
A beta hCG test measures the exact amount of hCG, the hormone made by the cells that will form the placenta, in your blood.
hCG appears within days of an embryo implanting and rises fast in the first weeks. A home urine strip only says yes or no above its threshold. The blood test gives a number (in mIU/mL) that can be repeated and compared, and the change between two numbers carries far more information than either one.
Test on the date your clinic gives you, and not before: at Jananam that is usually day 12 after a blastocyst transfer and day 14 after a day-3 transfer or an IUI [CONFIRM].
Implantation takes a few days, and hCG takes a little longer to become measurable. A test taken too early can be negative in a pregnancy that is doing well, or positive only because of the trigger injection. The waiting is hard. The date is not arbitrary.
Take your test on the date you are given. An earlier test, at home or in a lab, can mislead you either way. (What the evidence says (NHS guidance on IVF))
Because the range of first results in healthy pregnancies is very wide, what tells you more is how the level changes over 48 hours.
Two people can start at very different numbers and both have an uncomplicated pregnancy. There is no first number above which you are safe and below which you are not. NICE uses a rise of more than 63% in 48 hours as a sign of a developing pregnancy in the womb, still to be confirmed by scan. A slower rise, a flat level or a fall needs a review within a day, not waiting at home.
A beta hCG cannot tell you where the pregnancy is, whether it is twins, or how it will go; only a scan can show where it is and how many.
A high number is not proof of twins, and a low one is not proof of loss. The trigger injection contains hCG and can stay in the blood for about 10 to 14 days, so an early home test may show the injection, not a pregnancy. A pregnancy is usually too small to see on a scan until about 5 to 6 weeks, which is why blood tests come first.
An ovulation (LH) test can sometimes turn positive in early pregnancy, but it is not a reliable pregnancy test and should not be used as one.
LH, which triggers ovulation, and hCG are built alike, so some ovulation strips react to high hCG. A pregnancy test is made to detect hCG and turns positive earlier. After fertility treatment, the blood test on your given date is the one that answers the question.
Send us your report, or bring it in. We read it with you, and plan the next test the same day.
Units: mIU/mL and IU/L are the same value (1 mIU/mL = 1 IU/L), so a report in either unit reads the same.
The amount of pregnancy hormone in your blood on that day.
The lab's reading of the number against its own cut-off.
How many days after the transfer or IUI the blood was taken. Written by the clinic, not the lab.
The level is rising as expected for an early pregnancy.
The level is dropping.
The level is rising slowly, flat, or falling slowly.
IfNegative (below 5)
The cycle has not worked. Stop medicines only when we tell you, and we book a review to go through what happened and plan the next step.
What that meansIfBorderline (5 to 25)
Repeat the blood test in 48 hours. Don't read anything into it yet.
IfPositive and rising well
Keep your medicines. We book a scan at about 6 to 7 weeks [CONFIRM] to see the pregnancy in the womb. Jananam is fertility-only, so we then hand over to an obstetrician for pregnancy care [CONFIRM referral practice].
What that meansIfPositive but rising slowly or flat
Review within 24 hours, more blood tests and a scan to check where the pregnancy is.
What that meansIfPositive, then falling
A very early pregnancy loss (biochemical pregnancy). Common, not your fault, and it does not predict the next attempt. We plan the next step together.
What that meansIfPositive with pain, bleeding or dizziness
Call 108 or go to the nearest emergency department now, then call us on +91 89399 94244.
What that meansYou need a beta hCG blood test if one of these is you.
Not had treatment, and your periods are irregular? Start with when to take a home test.
We call or message you with the number and what it means, the same day [CONFIRM].
A repeat beta hCG 48 hours later if positive or borderline.
Medicines to continue or stop, and the date of your first scan.
Early pregnancy scans, then handover for pregnancy care. Or a review and a next plan if it hasn't worked.
Still unsure? Ask us on WhatsApp — a real person replies.
There is no single good beta hCG level at 14 days, because healthy pregnancies start across a very wide range. What matters is that the result is clearly positive and then rises as expected over the next 48 hours.
In early pregnancy, beta hCG usually rises quickly, and NICE treats a rise of more than 63% over 48 hours as a sign of a developing pregnancy in the womb. The rise slows naturally as the level gets higher, and by then a scan is more useful than more blood tests.
No, a low first beta hCG on its own does not mean the pregnancy will fail. It can reflect later implantation or normal variation; the repeat test 48 hours later tells you much more.
Not reliably. Twin pregnancies tend to have higher levels, but the ranges overlap so much that only a scan can tell.
Yes, an hCG trigger injection can cause a false positive, because it is the same hormone the test detects and takes about 10 to 14 days to clear. That is why we ask you not to test early at home.
Take it on the date your clinic gives you: usually day 12 after a frozen blastocyst transfer, or day 14 after a day-3 embryo. A blood test on that day is more reliable than any home test before it.
Sometimes an ovulation test turns positive in early pregnancy, because LH and hCG are similar, but it is not reliable. Use a pregnancy test, or after treatment, the blood test on your given date.
A result between 5 and 25 is borderline, so the next step is a repeat test in 48 hours, not a decision. It can be a very early pregnancy, leftover trigger hormone, or a pregnancy that is not continuing.
The nurses are truly exceptional; they are kind, caring, and always went above and beyond to make me feel comfortable.
Each and every steps were observed & performed by the main doctor, Dr. Vani mam itself.
The signs that need care the same day.
TREATMENTWhat happens from transfer to test day.
JOURNALBleeding, how long hCG lasts, and recovery.
JOURNALFor PCOS and cycles you can't predict.
Share your result and the date of your transfer or IUI. A real person from Dr Vani's team replies on WhatsApp, usually within minutes during clinic hours (Mon to Sat, 9am to 5pm. Sunday closed.). Pain, bleeding or dizziness with a positive test: call 108 first.