Hi, Welcome to Health care magic forum.
It is crazy to have such thinking. You have 5 miscarriages, and 8 live births. So if you get ovulation also, there is every possibility of miscarriage as it will be a late pregnancy
Any how i will provide the information you have asked. You may get the period, next month on 29th, and ovulation will be 14 days before that means on 15th .You should have sex for 5 days, from 11th to 15th .
Take more of green leafy vegetables, pulses, sprouts,and
protein rich foods to have a good result.
Wishing for a quick and complete recovery. Thank you.