Pregnancy 1st Trimester Results. Should I be concerned?

[Wee_Bird]

Hi

I am first in first trimester of pregnancy. Week 4+3

I have Hashimotos and am hypo. I have general had this under control for some time now.

However my September results were

Free t4 22.6 range 12-22

Tsh 0.11 range 0.27-4.20

T3 5.8 range unknown

I normally do well at the higher end of the range and meds at that time were 125mg Levo and 5mg T3. However GP recommended I reduce my dose to 100mg Levo keeping the T3 at 5mg

After reducing dose, bloods were done in November, before pregnancy, as follows and I was feeling quite run down.

Free t4 17.6

Tsh 0.92

T3 4.6

Therefore dose was upped again to 125mg Levo and 5mg T3.

Pregnancy results today were

Free t4 23.3

TSH 0.07

My question is if this is ok?

I would read this as TSH quite low and T4 a little high. However I understood that first trimester HCG hormone will raise T4 and in turn can lower the TSH. So initially this may not seem too concerning. But my worry is with them both being out of range, is this a big concern? Is the T4 too high and the TsH too low. I’m worried about reducing because I know the foetus needs Thyroxine for growth and otherwise I have no negative symptoms and feel completely well. Sometimes if I am taking too much, I start to feel tired and poorly so I’m pretty good at judging whether my dose is correct. Obviously there is less room for error here though due to pregnancy so your help would be really appreciated.

I always was told that you needed more T4 during pregnancy yet the ranges per trimester of T4 go down from 12-22 to

12.1-19.6 1st Trimester

9.6-17 2nd Trimester

8.4-15.6 3rd Trimester

Thanks in advance

[Lovecake]

Congratulations on your pregnancy.

I’m not able to offer much advice on this I’m afraid.

I think your thoughts are correct.

But I also think that how you feel is important.

Unless someone says otherwise, I’d leave the doses you are on as they are if you feel well.

I also think that the GP should check your bloods again in the next 3 months.

And obviously, if you feel the meds are not right, go and see them straight away.

I wish you a healthy pregnancy. Take care. 🤗

[Purpledreamer]

Hi, I know when I was pregnant they upped my dosage by 25mg as soon as I found out and I gradually tailed it back down after I gave birth. There are no apparent problems with my child who is now thriving at school!