3 day follicles - what's normal?

Melissa • TTC 3 years. IVF BFP 9/17. 🥚due 5/18
Had my first TVU today and I have five follicles, mostly six and seven in size but there was one five. Four are on my right and one on the left where my blocked tube is. What's normal? Is this enough? My AMH is normal and I should be starting the Gonal and trigger shot and progesterone this week .