Hello, I understand your concern and I hope you get your wish to become pregnant come true soon. While it is possible to become pregnant any day of the cycle, ovulation is the time when this is most likely to happen. This due to the fact that the uterus is at the peak of preparation for the implantation of an embrio. The fully vascularized inner uterine lining and the higher body temperature that occur in ovulation provide the perfect environment. In order for you to know when you are ovulating, so you can increase the sexual activity, I recommend you start a calendar, marking the date of the last period. Better yet, if you have a smartphone, there are many apps to track your menstrual cycle that tell you when you are ovulating. Wishing you good health and all the best.