Painless, heavy & recurrent bleeding of sudden onset during pregnancy is seen in:
Cervical carcinoma
Circumvallate placenta
Placenta pre
Abruptio placentae
Painless ,recurrent and heavy bleeding is seen in both placenta pre and cervical carcinoma but since placenta pre is more common than cervical carcinoma , the best answer would be Placenta pre.
Antepaum Haemorrhage