How many times should u have intercourse during ur fertile/ovulation window?

My 1st fertile day started on the tues the 11th and it is saying my ovulation day is on Saturday. I have been trying for my second kid for the past year and 4 months now. We have tried doing it everyday to doing it just once to everything in between during the window time frame. I am just curious what u guys have to say.. How many times u have had intercourse during that time and if it ended in up in a pregnancy or not. Also if anyone has any tips to help conceive. I am trying to stay postive and let it just happen but it is so very hard to do so and even harder when u test and have a negative or u start ur menstrual cycle :/