This will vary greatly depending on the package and length of session time. Some packages will guarantee 5 images while others will be unlimited. The average number is around 25-30 images.

First, you have to feel good about yourself and be comfortable. You don't want to be hiking a tight skirt down the whole time. If I had to give tips though, avoid large logos on clothing, wild overpowering prints and try to wear a solid color so your features don't have something that may take the focus off of you in the photo.

Early morning is clear and crisp, pretty. Evenings have what is called 'Golden Hour'... those warm, 'golden', romantic images that just glow.
Mid-day sessions are not the most ideal but can be done. They are more challenging... you just need to have more shaded areas and interesting back drops.

Thats ok! Thats one of the reasons for our communication before our session. I can find out a few things about you and how we may best work together. I'll also offer prompts and poses, some may feel random or ridiculous but they make for great images.