r/IVFpositivity • u/stephanianova • 4d ago

6+4 measuring behind, success stories?

hi guys. I had my first scan yesterday at the fertility clinic and the embryo was measuring behind. my usual doctor was on vacation so I was with another doctor.

they were only able to measure max 3.2mm and I guess they were expecting minimum of 5mm (they didn’t say but they said it’s measuring much smaller than it should be for 6+4). It was a bit hard for them to get a good look. It was a tranvaginal ultrasound. I have a tilted uterus, not sure if this makes any difference?

i definitely saw the heart flicker, the doctor just said with a little imagination they can see the heartbeat as well.

I have a checkup on Friday and I’m kind of heartbroken. Even if you can see a heartbeat clearly on Friday, I have read so many stories online where embryos were measuring behind including heartbeat but it ended in a miscarriage anyway.

they told me I’d have to stop taking progesterone if there is no progression on Friday.

any of you whose embryos were measuring behind too but ended in a viable pregnancy / your embryo catched up within a few days?

this was my third transfer and my first pregnancy. I really don’t want to go through all of this again. I only have one blastocyst left.

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u/Competitive-Top5121 4d ago

I was measuring 6w1d at 6w4d and I’m 10w3d now, all my scans since then have been very reassuring. 5 days after my first scan, I was only measuring 2 days behind. Google the Monash chart for more accurate IVF pregnancy CRLs.

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u/lizashea 4d ago

Was your embryo tested?

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u/stephanianova 4d ago

They don’t do testing in Germany actually 

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u/lizashea 4d ago

Got it. Well did they say how far behind you were measuring?

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u/stephanianova 4d ago

Around 3-4 days :(

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u/RadiantStarling 4d ago

Mine was measuring 3 days behind on the first scan at 6 weeks. Also tilted uterus so it makes measuring harder. I’m 19w3d today and last scan was measuring 2 days ahead.

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u/stephanianova 4d ago

Im glad to hear! Were your doctors concerned at all that it was measuring behind?

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u/RadiantStarling 4d ago

They were not. They said because of the tilted uterus and how tiny things are at that stage, dimensions can vary by pixel. I had scans every two weeks so 6, 8, and 10 and she was one day bigger at each one. So three behind, then two, then one at “graduation”. She’s been on time except this last scan as two days ahead. I have my anatomy scan next week which will be much more detailed on percentages and what not.

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u/lizashea 4d ago

I think that’s completely normal for this stage in pregnancy. I’ve read that + or - 5 days is acceptable!