(Closed) Low BBT

posted 4 years ago in TTC
Post # 2
Member
523 posts
Busy bee

Now sure how to answer this, but I am new to temping. I am wondering when you take your temp. Do you lunge for the BBT right after you open your eyes? I usually lounge around in bed for a few mins while my alarm is on snooze and pick it up (from under my pillow) when I’m still in bed but ready to get up. Over the weekend I’ve noticed that my temp goes lower and lower in subsequent readings, when I’m still in bed. I’m wondering now if I should lunge for it the moment I wake up..

Please let me know what you do!

Post # 3
Member
3247 posts
Sugar bee

You should be taking your temp as soon as you surface, before doing anything else. I would surface, take my temp and then move or get up to pee. 

That being said, yes being up two hours prior could affect it. They say resting temp is 4hours +. 

THAT being said, it is possible you run “cooler” than others. My normal temps were 96.8-97.2 ish my entire time temping (14 months), until I ovulated, then I had a jump to 97.6-97.9, which increased to 98.3-98.5 and hovered about there after my BFP. My coverline when I conceived was 97.4. Considerably lower than other ladies. 

Post # 4
Member
1391 posts
Bumble bee
  • Wedding: June 2014

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nurseybee55 :   Getting up two hours before you take your BBT can effect it. They recommend at least 4? Hours of sleep. I’ll have to check on that. However, having a lower BBT shouldn’t effect your cycle. Some people are just naturally colder. 

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greywacke :  Lunge for it! Lol well don’t actually lunge, but yes take your BBT as soon as you wake up. Everything you do once awake can effect your BBT. 

Post # 6
Member
1120 posts
Bumble bee
  • Wedding: October 2015

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nurseybee55 :  hello and welcome to temping! My pre-O temps run a bit on the low side as well, around 96.8 – 97.2F. Then after ovulation they jump up to 97.6-98F. So like PP said, you may just naturally run a bit colder than others (like I do). I’ve had my thyroid checked and everything came back fine, you may want to ask your doctor to check TSH and free-T4 for peace of mind. Sometimes (but not always) lower temps can indicate a thyroid issue, which can affect fertility.

and yes, temp right away when you wake up! It’s a pain but you’ll get used to it, I don’t even think about it any more. 😊

Post # 7
Member
9791 posts
Buzzing Beekeeper
  • Wedding: September 2013

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nurseybee55 :  96.67 doesn’t seem too extreme to me.  I sometimes had lowest temps of the cycle around that.  But usually they ran 96.7-97.3 pre-O.  Getting out of bed and moving will usually raise your temps but if it’s cold where you are it could possibly lower it.  But that being said, I regularly was out of bed (usually didn’t get 4 hours straight in bed) and my temps were fine and showed O as long as I was in bed or asleep for a good hour before taking my temps.  Only thing that really threw it off for me was not getting enough sleep overall (like if I had been up on and off and only slept 5-6 hours total).

I tried taking my temps after the longest stretch of sleep and using a calculator to adjust the temps (you are supposed to take temps at the same time each day) but it made my chart harder to read.  I had better luck just temping at the same time each morning, wether I had slept for 4 hours before temping or 1 hour.  As long as I was in bed at least an hour.  I had a toddler, so I was probably up 2x a night between my LO waking up 1x and maybe getting up to use the bathroom 1x.

Post # 8
Member
620 posts
Busy bee
  • Wedding: July 2015

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nurseybee55 :  I’ve just started temping and my lowest so far has been 35.4C. I’m regularly around 36C and my highest ever was 36.3. Haven’t got to ovulation yet but I’m assuming I’ll be around 37C then. I don’t know if it makes much of a different fertility wise. I’ve heard having temps too high might be bad for a baby (cooks it l guess hah!) But low seems ok.

Post # 9
Member
1391 posts
Bumble bee
  • Wedding: June 2014

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nurseybee55 :  do you normally wake up around 4? If so I would just start temping at that time. I know I had to start setting my alarm to 5am for temping cause I’d always wake up around that time anyway to go pee.

Post # 10
Member
9384 posts
Buzzing Beekeeper
  • Wedding: July 2016

My temps are around that.

While I’m still TTC, I did get pregnant a few cycles ago (I just miscarried, and afaik it doesn’t seem to be due to my temps), so my point is AFAIK it’s fine.  What’s more important is that your post-ovulation temps go up significantly.  Ideally to around 98F or more.

If you are worried, testing your thyroid hormones can’t hurt.

If your post-ovulation temps never get very high, it may be worth testing your progesterone or going to acupuncture.  Beofre acupuncture my post-o temps only went to 97.7 or so, and I don’t think it’s an accident that I got pregnant shortly after I started seeing an acupuncturist and my temps went up to a more desirable range.

Post # 11
Member
375 posts
Helper bee
  • Wedding: May 2016

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nurseybee55 :  Hi! My pre-O temps are in the mid-96s like yours. They almost never go over 97 until I’ve ovulated unless I did something to change my normal temping routine or I’ve been sick. I was worried at my low temps when I first started three years ago, but have realized this is normal for me and my cycles seem otherwise very healthy. Getting up two hours before would likely raise your temp if it did anything. Everyone is different as to how drastically that would affect you. For me, if I got up two hours before and went back to sleep, it wouldn’t affect mine too much. For others it would throw everything off. Take it before you got up at 3 would have thrown it off too though because you don’t be two hours ahead of when you normally temp. That’s why we do it everyday day, so we can track patterns and ignore outliers that we’re caused by outside factors. I wouldn’t be too concerned about the low FP temp as long as everything else seems healthy and you ovulate.

Post # 12
Member
375 posts
Helper bee
  • Wedding: May 2016

Here’s what myastbxhart looked like. I actually almost never go above 98 like I did here a couple times. Not sure what that was about! I’ve learned after 3 years these ranges are normal for me!

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