5 days of Stims. Rules of intimacy at this point?

Ally • Mommy of 2 👨‍👩‍👦‍👦 TTC #3 for 2 years 🙏 3 failed IUI’s, 1st IVF. Momma to be of baby girl 💕

I’m on day 5 of Stims. I know in my class they had said you have to start wearing protection at a certain point. So much going on that day, I can’t remember the details on that. Is it safe now or need protection? Thanks!