I am 7 weks pregnant and just realised that I may meed to increase my medication by 25mcg but neither my GP or the early pregnancy unit advise me to do so and I just came across it online. I'm worried because I last had my thyroid tests done 3 days before I found out I was pregnant and my FT3 levels are only just above the normal range 4.4 (4.3-6.8). My T4 was within range and My TSH has been low since I stopped NDT and is taking time to go back to a normal reading so I'm not fussed about TSH as it has been supressed by past NDT meds. I'm currently on 100mcg of Levo. Should I increase by 25mcg and should I be on a little T3 as well as it looks like I'm not converting well? Going to call GP monday morning and try to get a referral to Endo if possible but I've had several miscarriages in the past so a bit worried. Does anyone know the range for FT4 and FT3 in pregnancy as I can't seem to find it anywhere. Thank you.
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Jenyren
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The first link is from the NICE website containing their Clinical Knowledge Summaries. Unfortunately doctors are not obliged to follow these if they don't want to, and I don't think there is any way of forcing them to give you more Levo.
The second link is from the British Thyroid Foundation, the so-called patient arm of the British Thyroid Association (an organisation for doctors). Your GP may actually take that one seriously, but I'm only guessing.
It will be especially difficult for you because your TSH is below range, and your Free T4 is already 70% through the range, so they may even suggest you are tending towards hyperthyroidism. I know this is bizarre and stupid, but this is how they are taught.
Your doctor is unlikely to be interested in your Free T3 (which I agree is absurd because it is the active hormone). In fact, women who take T3 and get pregnant are often told by midwives and doctors that they are killing their babies. This is total nonsense. Every single women who ever had a baby has had T3 flowing in their veins during the whole conception, pregnancy, and birth, although healthy women are likely to produce more T3 than many people with hypothyroidism.
Just for info... You might find this link of interest :
Have you had your basic nutrients tested recently? I'm talking about Vitamin D, Vitamin B12, folate, and ferritin? Optimising the levels of these will help you to have a healthy pregnancy and a healthy offspring, and will also help your body to convert T4 into T3. Low or deficient levels of vitamins and minerals can reduce birth weight and reduce your chances of having a healthy child. It will also increase your risk of miscarriage.
You might find some of the info on this link of interest :
Thanks for your reply. I'm currently on prenatal, B complex, extra folate as im overweight, selenium, vit D 5000IU, vit c, zinc and omegas. I will request a full iron panel tomorrow.
Congratulations on your pregnancy. I am assuming you are in the UK.
You will need to be managed by consultant obstetrician and have your thyroid bloods done prior to your appointment if possible.
You will be allocated a midwife soon. Please speak to her and she should be able to get a consultation arranged. Failing this your GP may be able to initiate this. In any event they will need a most recent blood test
Thank you for this info. Thats good to know that I should be overseen by consultant. I shall make sure that happens. Midwives ahvent been in touch yet but I have self referred for pregnancy so hopefully they will get in touch soon. Will be speaking to my GP today about raising meds and blood tests. Thank you.
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