Under active thyroid (hypothyroidism)

Rose/33YO/ TTC Since Dec.`19

Found out i have under active thyroid and have not started medication yet. Doctor said ive likely had it for a while now. BUT i have been ovulating every month and have a regular period. Ovulation have been confirmed by OPK and temping. So now im wondering if my thyroid is having any negative effects on fertility since im still ovulating.