Does my thyroid affect my chances of getting pregnant?

Yes, thyroid health matters both for conceiving and for early pregnancy. An underactive thyroid can disturb ovulation and raise miscarriage risk. Many fertility guidelines aim for a TSH below about 2.5 mIU/L when trying to conceive, so a value of 4.8 is usually worth treating or at least rechecking — but your doctor will decide based on your repeat tests and thyroid antibodies. If you're prescribed levothyroxine, take it on an empty stomach as directed, don't stop it on your own, and get your TSH rechecked regularly, since needs often rise in early pregnancy. Treatment is simple, inexpensive and very effective.