Hi.dr..i Am In 2nd Month Of Pregnancy..but Unfortunately Having Light

Hi.dr..i am in 2nd month of pregnancy..but unfortunately having light spots from one week ..i consulted my dr n she had advised me dgest tablt but i m taking dirogest tablets.you kindly inform me that is both the tablets have same affect m formula..??n tell me that is this medicine is safe for my baby??what are the side effect of this tablet??rep asap