Jump to content

Have you used FRER to test out Ovidrel 250mcg trigger?
When was it out of your system?

  • Please log in to reply
11 replies to this topic

#1 dimensionk

Posted 23 January 2013 - 10:00 AM

I should have done this. Wondering if I have any hope.

Apparently FRER is much more sensitive than advertised - I think it picks up as little as 6.5 mIU

I know I should wait for the blood test, but I don't have that kind of self control!

Edited by dimensionk, 23 January 2013 - 10:01 AM.

#2 dimensionk

Posted 23 January 2013 - 11:03 AM

I think I have worked this out...

Half life of the HCG usually 29 hours, and 35 hours at most (will use the latter).
Ovidrel 250mcg is claimed to be 6700IU HCG at most (6,700,000mIU ...but it's per L so cancels out with reading of the pregnancy test which is mIU/mL).
FRER is tested to pick up as little as 6.5mIU/mL.
Initial dose - 6700
1x35 hours later - 3350
2x35 hours later - 1675
3x35 hours later - 837.5
4x35 hours later - 418.75
5x35 hours later - 209.375
6x35 hours later - 104.6875
7x35 hours later - 52.34375
8x35 hours later - 26.171875
9x35 hours later - 13.0859375
10x35 hours later - 6.54296875 <--- * close enough to 6.5 to make testing beyond this time accurate
11x35 hours later - 3.271484375
12x35 hours later - 1.635742188
13x35 hours later - 0.817871094

* So 10x35 = 350 hours (14.6 days) - this is the longest it should take to be undetectable!
Or using 10x29 (as usual half life is 29 hours) = 290 hours (12.1 days) - this is how long it would typically take to be undetectable by a test as sensitive as 6.5mIU/mL

#3 dimensionk

Posted 23 January 2013 - 11:18 AM

For those having 10,000 HCG (or even Ovidrel 500mcg = 13,400 HCG) trigger, it's 16 days worst case (likely 13.3 days) with a 6.5mIU/mL sensitive test.

#4 gemgirl

Posted 23 January 2013 - 11:54 AM

I don't know... when did you have the trigger, 2 days before ovulation or a booster after the embryo transfer?

I never "tested it out" by testing every day or anything, but would do random tests and it would go very quickly.

Pregnancy mentioned...

I got a VERY faint line at 8DPO (DP couldn't see it and I barely could) and a faint line at 9DPO (DP still couldn't see it) and by 10DPO my bloods showed I was pregnant (DP wouldn't believe it til 12 DPO once it'd doubled though original.gif)

I took 2 triggers that cycle - both at 250iu, both at the same time, 2 days before ovulation (Egg retrieval) and then the embryo transfer was 2 days after that.

Good luck. I hope it's good news original.gif

Edited by gemgirl, 23 January 2013 - 11:55 AM.

#5 dimensionk

Posted 23 January 2013 - 12:08 PM

Yes, I had the trigger 2 days before ovulation/retreival (no booster). Then a Day 2 transfer.

Thanks for the positive story, that gives me hope! original.gif
Is that with FRER?

#6 Bwok~Bwok

Posted 23 January 2013 - 01:35 PM

With my Fresh Transfer I had the trigger before EPU and transferred a 5 day embie.

The day before blood test I got a HCG reading of 4 and then 2 days later HCG of 11, I also did a HPT (First Response) after I got the results (so afternoon) and I got my very first +HPT. But sadly it was classed as a CP at 5 1/2 weeks.

#7 dimensionk

Posted 23 January 2013 - 01:49 PM

Hi Bwok~Bwok, I have been following your (heart breaking) news. I have a feeling you're getting closer to a sticky one. Hope the next one is it. Hope you're okay.

#8 Bwok~Bwok

Posted 23 January 2013 - 11:28 PM

Oh thank you and yep I'm doing ok original.gif

#9 dimensionk

Posted 24 January 2013 - 10:39 AM

Very glad to hear it! original.gif FX Cycle 2 is the charm!

#10 gemgirl

Posted 24 January 2013 - 05:22 PM

So... it looks like good news so far? original.gif

Big hugs Bwok.

#11 dimensionk

Posted 24 January 2013 - 08:31 PM

Yep it turns out it wasn't the trigger!

(Or at least, not _just_)

#12 gemgirl

Posted 24 January 2013 - 08:42 PM


1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users


Life with anxiety

At times, I feel pretty worthless. In those moments, all I want to do is curl up into a ball and hide in the dark. I can try to quiet my mind, but it won?t shut up.

IVF leaves woman pregnant with another couple's twins

An Italian woman has been told the twins she is three months pregnant with are not hers.

'My mother-in-law found out our baby's gender behind our backs'

My husband and I mutually decided that we didn?t want to know our baby's sex before the birth, but his mother couldn't handle that.

What you need for the 'fourth trimester'

In my opinion, the first three months after the birth are the most intense. Here's what got me through that time after welcoming my baby.

Weaning a toddler off a dummy: a 15-day plan

Weaning your child off the dummy can be a traumatic experience for both of you. Here are some tips to help you through.

Choosing to be a solo parent

Two women share their stories of longing for a baby so much that they each decided not to wait for a partner before becoming a mum.

Asphyxia link another piece of the SIDS puzzle

An Australian study has uncovered information which could lead to a better understanding of why babies die from Sudden Infant Death Syndrome.

Rescue dog Zoey and BFF Jasper star in adorable pics

Photographer, self-professed "crazy dog lady" and mum Grace Chon takes photos of rescue dog Zoey and her 10-month-old son Jasper together. The results are just too cute. See more on Instagram @thegracechon.

The ultimate travel stroller: the Mountain Buggy nano

We tried the Mountain Buggy nano and give it an enthusiastic thumbs up. As the ultimate travel stroller, it's practical, has great features, and looks fab, too.

Mum's heartbreak as son dies in road accident

Daly Thomas and her two young sons were walking home from church on Tuesday afternoon. Her youngest son never made it.

New Kate Spade baby bag designs

Don?t adjust your screen: this bright beauty is coming to you in full colour.

Easter gifts for babies, no chocolate in sight!

If this is your little one?s first Easter you might want to mark the occasion with something a little extra special. Here are 10 Easter gift ideas, which won't harm little teeth.

Download now: Essential Kids Activity Finder app

Got bored kids? Quickly find the best activities for kids wherever you are in Australia with the Essential Kids app.


What's hot on EB

Win the brand new phil&teds vibe

Check out the good looking new release of the Vibe 3 and the Verve 4-wheeler inline strollers. To celebrate their release, we have a Vibe with double kit to give away.

Baby sleep

From birth to one year and beyond, read about baby sleep, soothing techniques, routines, and sleep school experiences.

Easter gifts for babies, no chocolate in sight!

If this is your little one?s first Easter you might want to mark the occasion with something a little extra special. Here are 10 Easter gift ideas, which won't harm little teeth.

7 tips for a kid-free trip, not a guilt trip

Although I?m jumping out of my skin to take my child-free holiday, I?m dreading the goodbye. But I?m determined to make the most of it without tarnishing it with guilt or sadness about leaving the kids.

Itchibubs: clothes for babies and toddlers with eczema

Parents of children who suffer from eczema will know only too well the scratching that occurs around the clock. A new clothing range aims to help make everyone more comfortable.

Ear piercing: what age is best?

What is it that shapes our opinions on what?s an 'appropriate' age for our children to get their ears pierced? Parents share their views on how young is too young when it comes to piercing.

Caring for kids helps grandmothers stay mentally alert

Looking after grandchildren can help grandmothers ward off brain disease - but it's also possible to get too much of a good thing, researchers say.

Why I loved my third home water birth

After two water births at home, I was determined to give birth to my son the same way. I just hoped this birth would be quicker than my last two.

Revealed: 7 ways food marketers try to trick consumers

If you?re confused by food labels, you?re not alone. Next time you?re shopping for food, look out for these seven common labelling tricks.

'My mother-in-law found out our baby's gender behind our backs'

My husband and I mutually decided that we didn?t want to know our baby's sex before the birth, but his mother couldn't handle that.


Free Printable Activities

Keeping little hands busy

Free printable acitivity pages like colouring in, cutting, word finders, mazes, maths activities and puzzles.

Essential Baby and Essential Kids is the place to find parenting information and parenting support relating to conception, pregnancy, birth, babies, toddlers, kids, maternity, family budgeting, family travel, nutrition and wellbeing, family entertainment, kids entertainment, tips for the family home, child-friendly recipes and parenting. Try our pregnancy due date calculator to determine your due date, or our ovulation calculator to predict ovulation and your fertile period. Our pregnancy week by week guide shows your baby's stages of development. Access our very active mum's discussion groups in the Essential Baby forums or the Essential Kids forums to talk to mums about conception, pregnancy, birth, babies, toddlers, kids and parenting lifestyle. Essential Baby also offers a baby names database of more than 22,000 baby names, popular baby names, boys' names, girls' names and baby names advice in our baby names forum. Essential Kids features a range of free printable worksheets for kids from preschool years through to primary school years. For the latest baby clothes, maternity clothes, maternity accessories, toddler products, kids toys and kids clothing, breastfeeding and other parenting resources, check out Essential Baby and Essential Kids.