So tempting!

I'm 29 years old & I've been on the pill for 10 years. Now I'm the midst of my first cycle off of it, & the next few days are my most fertile according to a few places I'm tracking. So tempted to have sex because I feel like we might have a hard time.. and I'm just excited to be a mom 😀 BUT all of the twin stuff I hear all the time is scaring me and I'm probably going to end up holding off until next cycle. The anticipation is already so hard!! Any advice?