Slow thyroid

I have an underactive thyroid and now have 2 kids.
My thyroid values were well controlled with medication and I got pregnant very quickly. First time, first month, and second time in the 3rd month (though we skipped one month due to bruised ribs).

Just keep in mind that your thyroid values need to be checked every 4 weeks during pregnancy.
If you haven't told your doctor yet that you're trying to conceive, do so.
With mild abnormalities, medication isn't always prescribed right away, but if you're trying to have a baby, it's part of the protocol.

Hey Lisa,
In Nov. 2016 I went to an endocrinologist for a general test. Turns out I have a slow-working thyroid, and since we were also trying for a baby, the doctor wanted to check my hCG levels during the tests too. I had to start immediately with L-thyroxine 50 instead of 25 because it's very important that your metabolism and hormone function work well during pregnancy. I was 4 weeks pregnant at the time... had a miscarriage after a week... had to go to the hospital every 3-4 weeks to find the right dosage through blood tests. Now I'm 9 weeks pregnant and have to take 75 micrograms of L-thyroxine. I went again this week... the tests are very good... I have to keep taking 75 and do another lab test after 8 weeks.
If you want to get pregnant, I recommend getting your thyroid levels checked first before starting. My gynecologist said the miscarriage could also have been due to my thyroid issues.

Good luck.

I also have an underactive thyroid. With medication, it's well-controlled for me too. Before my pregnancy, I was on 25mg and my levels were fine.

When I first started the medication (L-thyroxine), I had to get my blood checked again after 6 weeks (indeed about 50 days) to see if the levels were good. There's really no point in testing sooner than 6 weeks because it generally takes about 6 weeks for your body to really start absorbing the medication properly. Apparently, it's a slow process... (that's how my GP explained it to me).

But it is indeed important that your thyroid levels are good when you're trying to conceive, because otherwise you're more likely to have a miscarriage (both with levels that are too low and too high).

Once I had a positive pregnancy test, I had to go to the GP every 4 weeks to have my levels checked. And at the start of my pregnancy, I had to increase my dose twice. Apparently, most women need to increase their dose somewhat during pregnancy. I'm now on 50mg, and things seem to be going well with that.

Anyway, good luck! If you get it properly monitored by your GP, it certainly shouldn't stand in the way of a healthy pregnancy Just make sure your levels are good now, and then once you're pregnant, get a new blood test every 4 weeks.

You're right, there does need to be some time before you see the effect of the medication.
I'm currently taking 50 mg one day and 75 mg the next. I originally started with 75 mg, but since I'm now on the mini-pill due to breastfeeding, I need slightly less hormone. The required amount can be higher due to pill use.

Almost every woman needs more medication during pregnancy. So if you know you're pregnant, contact your doctor right away.