Couple weight gain questions

This is my first baby and my midwife is very busy so I don’t want to bother her with simple questions that I could ask you lovely ladies ☺️

I’m recommended to gain the normal amount of 25-35 pounds for this pregnancy, but I lost 10 pounds in my first trimester. Should I gain 25-35 from my prepregnancy weight, or just from where I’m at now?

When do you start expecting to gain about a pound per week? I’m still about 15 weeks so I haven’t gained much if anything back from what I lost. When does the weight gain start speeding up?

Thanks so much!