Oh gosh, I posted earlier and see it didn't show up.
Yes, hypothyroidism can lead to acne, and evidently when anti TG thyroid antibodies are present. Since you are pregnant, your body is experiencing a flux in many hormones, and your need for thyroid meds. will change over the course of the pregnancy. So if you have Hashimoto's your need for thyroid meds may go up, until the thyroid is rendered useless. Hopefully you have an OB/GYN doc who understands the cause of your hypothyroidism and can help you navigate thru term.
When my thyroid medicine is not at a high enough dose, I get acne like I am a teenager again. lol. Experiencing again right now after having Hashi's for many years. I use an acne facial wash on the areas of breakout, and hypoallergenic one on the rest of the areas.
The way I research on health info on the web, is to add "nih" to my query. It stands for National Institutes of Health (US) and will guarantee the results are from peer reviewed papers or other reliable source. That's not to say all papers come to same conclusion, but it all helps to make an informed choice.
So I just googled: "acne and hypothyroidism, nih". Here are the top two results:
"CONCLUSIONS: It is likely that thyroid autoimmunity might be more frequent in the adult acne patients and this should be kept in mind when screening women with post-adolescent acne".
"When compared for the presence of each dermatosis, chronic urticaria, vitiligo and pruritus were found to be significantly higher in the patient group with thyroid diseases than in the control group. In terms of the presence of skin findings, no statistical difference was detected between autoimmune hyperthyroidism and non-autoimmune hyperthyroidism, between autoimmune hypothyroidism and non-autoimmune hypothyroidism, or between autoimmune euthyroidism and non-autoimmune euthyroidism".