Can we get on track?!!! Lol

I have been using this wonderful app for about 2 months now. I love how very informative with details & tips for conceiving. The unfortunate part is me & my fiancé can never get it all the way together on track to have sex on my highest ovulating days. It's like something always comes up or we have prior arrangements. Sometimes I wanna scream because I feel like I'm getting impatient. I believe I should just cancel anything that comes up or make rain checks. Lol time waits for no one. I think I might just hold him hostage for that week.