I had an u/s today at 7w4d (an FET of 2 excellent quality 5-day blasts on 11/30). We were able to see a hearbeat, but the embryo only measured 4mm. From what I am able to gather from the internet (whether this is a good idea or not), that is way too small. The RE said that it could have implanted late (how late?! Not a whole week, right?!) or that it may not be growing. He said we would just have to wait a week to look again. I am terribly worried. Can you shed any light on this situation?
Even a small deviation of the hand holding the ultrasound probe can cause a significant difference in measurement of a fetus that small. If there is good interval growth, you are probably OK. Good luck.
I am in a somewhat similar situation. Went in for both 6.5 and 8 week transvaginal u/s. CRL were 2 mm and 9 mm respectively with a good strong heart beat at the 8 week appt. This was an IUI conception with known ovidrel trigger date. The nurse seemed to prepare me for a miscarriage giving me a miscarriage rate of 80%. Is this accurate?
If the fetal pole is the appropriate size for dates, and there is appropriate interval growth between measurements, and the fetal heart rate is at least 140 beats per minute. You probably have a good pregnancy. Congratulations!
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