Sex while ovulating

April • Trying for baby #2!
Ok my fiancé and I have been together for 3 years. We have been trying to conceive for about 2. I'm ovulating properly, I take my ovulation tests. I know my fertile window. So we generally have sex about 2-3 times a week but 2-3 times a day during that window. Question is, is there a certain time of day we should be having sex? Morning? Afternoon? Evening? I think at this point, after trying so hard and me being convinced I'll never be a mother to my own child (he has a 4yo from PM) I'm desperate to try anything and sure there's got to be some magic method!! I spent so many years 
 rying NOT to get pregnant, then I meet the man I want to spend forever with and spend the last 3 years doing everything I can to make it happen!! A little advice. And maybe some hopeful thoughts and prayers here ladies. :( thanks!!