Return of ovulation may take a couple of months after the stoppage of pills. In fact, certain low-dose combinations allow ovulation to continue while providing contraception
. The oral contraceptive pills
act by inhibiting ovulation, making the endometrial lining unfavorable for implantation
and making the cervical mucus hostile for sperm entry. You can try for natural conception for a few months if you do not have any other constraints before you approach a doctor for help. Take care.