Medicine for ovulation

how to know ovulation days and the safe days in period :
1. ovualtion time or the time ovum exist are the first 4 days of the last 16 days of the period , for example ;if your period is 28 days , and  if your first day of period was 1st/9 , your ovulation time is 12th-16th /9 
2. ovums last 48 hours in the uterus and can get fertilized any time during this period of time 
3. male semen last up to 5 days in female uterus and will be able to fertilize during this period of time , but the earlier the better 
medications to increase ovulation and ovums quality and increase pregnancy chances ?
- multivitamins 
- promote ovum quality injections 
- promote ovulation injections 

promote ovum quality injections :
1. merional
2. fostimon
3. Menopur
promote ovulation injections :
1. ovidrel 
2. novarel