How often do you have sex during your fertile window?

Sara

We visited the OBGYN because we’ve been trying to conceive for over a year. My husband has low volume and she told us to have sex every other day during my fertile window and the day of ovulation. We haven’t conceived because he’s depleted by the time I ovulate. We were having sex everyday of my fertile window and twice on ovulation day. What have you guys been told or what do you do?