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Conception

When's the best time to get pregnant? Use our interactive ovulation calculator to work out when you're most fertile and most likely to conceive.

Original poster

OPK & BBT don’t match up?

28 replies

GeorgeR28 · 23/11/2023 08:58

Hi everyone,
I got my positive OPK on 13th this month. I was on holiday & didn’t wear my sensor to track bbt on the night flight home so I missed CD14 temp. My app has put my predicted fertile window later this cycle as I ovulated CD17 last month. I had physical symptoms of ovulation as well but now my bbt has dipped so no confirmation of ovulation? I’m worried I haven’t ovulated now? Can someone offer some insight!? Thankyou x

OPK & BBT don’t match up?
OP posts:
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Tor88 · 10/11/2024 16:49

@GeorgeR28 how are you getting on?? I experienced a mismatch between opk surge and bbt 4 months running when I was ttc, I still can't explain it, I remember even emailing natural cycles to explain then the first month it aligned again I conceived. I'd had two miscarriages prior to that so I still wonder if that messed things up. Ive just started tracking again as we prep to try for number 2 and I'm getting the same thing, I'm personally sure that the opks are right and not the bbt because this also matches with EWCM. It's maddening though when you need to be accurate...

Original poster
GeorgeR28 · 24/11/2023 08:47

@Mamato29192 so my temp is back up again today, higher than ever, this is what it normally looks like so maybe yesterdays temp was wrong

OPK & BBT don’t match up?
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Original poster
GeorgeR28 · 23/11/2023 22:22

That’s exactly what we did so fingers crossed! It’s so draining getting my hopes ip every month & im hyper aware of everything after having a miscarriage

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Outliers · 23/11/2023 21:50

GeorgeR28 · 23/11/2023 17:08

@Outliers thanks so much! So you think I still go with what my LH tests said? I did three types of tests also.. clear blue digital advanced and two different brands of strip tests

Stripe tests from Boots or another retailer work fine. I prefer them over CB. Test on your 2nd urination, e.g. between 10am-2pm. Once you have a strong positive I would suggest just doing it every other day, until a day or two past ovulation.

Outliers · 23/11/2023 21:47

Mamato29192 · 23/11/2023 17:22

But they only tell you when ovulation is about to happen not when it happens. BBT is definitely more accurate

Show quote history

Whatever works for you. I'm currently 5weeks from the first attempt so just saying what works for me

Mamato29192 · 23/11/2023 19:09

GeorgeR28 · 23/11/2023 19:04

@Mamato29192 l think with OvuSense if you haven’t fallen pregnant within 3 months they send you the vaginal one for free so hopefully if I don’t get lucky this month I’ll get one of those and see a difference. Is it really uncomfortable to wear?

I just used a BBT thermometer wasn't uncomfortable. So I can't imagine ovusense one to be

Mamato29192 · 23/11/2023 19:09

GeorgeR28 · 23/11/2023 19:05

@Mamato29192 is it common for the Lh to surge but ovulation not happen? I’ve never had that happen to me

It has happened to some. But don't let it discourage you

Original poster
GeorgeR28 · 23/11/2023 19:05

@Mamato29192 is it common for the Lh to surge but ovulation not happen? I’ve never had that happen to me

OP posts:
Original poster
GeorgeR28 · 23/11/2023 19:04

@Mamato29192 l think with OvuSense if you haven’t fallen pregnant within 3 months they send you the vaginal one for free so hopefully if I don’t get lucky this month I’ll get one of those and see a difference. Is it really uncomfortable to wear?

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emmatcc1 · 23/11/2023 19:03

I did one cycle orally and switched to vaginally, definitely more accurate.

Mamato29192 · 23/11/2023 17:29

GeorgeR28 · 23/11/2023 17:08

@Mamato29192 Really! I wear the sensor on the inside of my arm so that could still be inaccurate? My sleeping pattern has been all over the place also

Edited

Yep. I only did one month vaginally and fell pregnant. Obviously other factors involved but its definitely accurate.

Mamato29192 · 23/11/2023 17:23

Also it's not a guarantee that it's happened*

Mamato29192 · 23/11/2023 17:22

Outliers · 23/11/2023 16:39

Possibly. But there are still other factors and temperature spikes can occur after ovulation has already happened. Of course everyone's body is different but I do find LH more scientific indicator.

Show quote history

But they only tell you when ovulation is about to happen not when it happens. BBT is definitely more accurate

Original poster
GeorgeR28 · 23/11/2023 17:08

@Mamato29192 Really! I wear the sensor on the inside of my arm so that could still be inaccurate? My sleeping pattern has been all over the place also

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Original poster
GeorgeR28 · 23/11/2023 17:08

@Outliers thanks so much! So you think I still go with what my LH tests said? I did three types of tests also.. clear blue digital advanced and two different brands of strip tests

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Outliers · 23/11/2023 16:39

Mamato29192 · 23/11/2023 16:30

BBT is only really accurate when done vaginally

Show quote history

Possibly. But there are still other factors and temperature spikes can occur after ovulation has already happened. Of course everyone's body is different but I do find LH more scientific indicator.

Mamato29192 · 23/11/2023 16:30

Outliers · 23/11/2023 16:28

BBT tests are given too much credit imo. There are a long list of factors than can affect temperate outside of cycle.

I would trust LH tests more.

BBT is only really accurate when done vaginally

Outliers · 23/11/2023 16:28

BBT tests are given too much credit imo. There are a long list of factors than can affect temperate outside of cycle.

I would trust LH tests more.

emmatcc1 · 23/11/2023 15:21

@GeorgeR28 It takes practice but with time you can feel a clear difference between open and closed cervix. This way you can also get cervical mucus right from the cervix which is more accurate. I figured I ovulate middle of night/ early morning because when I wake up my cervix is closed again, I think most people ovulate at that time that’s why dtd the day before is best.

Original poster
GeorgeR28 · 23/11/2023 14:25

Oh really! How do you do that if you don’t mind me asking?

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emmatcc1 · 23/11/2023 14:02

@GeorgeR28 I’m on cycle 17 so it’s been a while. Last couple of months I have only been tracking with cervix position which has been accurate. I really wonder how this cycle turns out and when my af arrives.

Original poster
GeorgeR28 · 23/11/2023 12:50

@emmatcc1it’s so frustrating isn’t it! How long have you been ttc?
I got pregnant so easily the first time not tracking anything but that ended in a MC sadly. Now tracking my ovulation to try get pregnant asap and all it does is upset me 😂

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emmatcc1 · 23/11/2023 12:21

@GeorgeR28 The only way I will truly know when I ovulated will be when af arrives. It’s so confusing because my temps always follow the same pattern of 36.3-36.6-36.8. So cd12 and 13 are low enough for my ovulation temps.

Original poster
GeorgeR28 · 23/11/2023 12:19

@omgz i also did opk’s this morning & they were negative x

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Original poster
GeorgeR28 · 23/11/2023 12:10

@emmatcc1 oh wow that gives me some reassurance Thankyou so much x

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