Miscarriage at 8 weeks. Many questions

Went to the doctors office at 8 weeks pregnant with light brown spotting, had a vaginal ultrasound and there was no baby anymore. The doctor did a curettage.
I feel devastated but know God has bigger plans.
I have some questions:
1. When will i get my period?
2. My dr. Told me to wait 2 periods to try to conceive again, how lo g have you waited?
3. Is it true that you are more fertile after having a misscarriage?
4. What are the chances of misscarriage after a first misscarriage? Are they higher or lower?
Thnks and sorry for my bad spelling/grammar, english is not my native language.