Hi have a 30 days menstrual cycle from last six months. Before that, sometimes I have received few delayed problem (60 days). Last month me and my husband was ttc and we did intercourse on 13-16th day after period (14 Nov, 2017 was last period day. I you sell get sore breast after ovulation. But this month it did not happened. I don't have any pregnancy signs. Negative pregnancy test on 20 Dec. Still no period not started. Should I consult a doctor?