hari_74809, conception can be difficult and the risk of miscarriage increases when TSH is >2.0
NICE recommendations for hypothyroid women planning pregnancy and newly pregnant say TSH should be in the low-normal range 0.4-2.0.
As soon as your wife's pregnancy is confirmed her Levothyroxine dose should be increased by 25-50mcg to ensure good foetal development during the first trimester when the foetus is dependant on maternal thyroid hormone.
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Hari, GG has pointed out that TSH 4.4 is considerably over 2.0. I misread your post as TSH 2.3. I'd advise waiting a little longer before attempting pregnancy, ideally wait until TSH is 2.0..
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