me and my husband planning for baby. can i start...

Can you start taking those suppliments ?
yes you can , most importantly is folic acid , and you general dose is 1 pill daily 
General advices to increase your chance of getting pregnant ?
1. make sure to do the sexual intercourse during the ovulation time to increase the chance of getting pregnant 
2. performing sexual intercourse many timeswont effect the quality of male semen , but in the same time ,  performing it in excessive way such as ( 3 times daily ) won't increase the chances of getting pregnant , so just try to perform sexual intercourse in mild range such as once daily and it's enough to get you pregnant 
3. lie down after sexual intercourse for about half an hour , and don't wash your private parts directly after that 
4. take care of your and your partner life style quality , eat healthier food , sleep well , avoid stress and anxiety , do exercise regulary
How to know ovulation days and the safe days in period :
1. ovulation 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. the ovum last 48 hours in the uterus and can get fertilized any time during this period of time 
3. male semen lasts up to 5 days in female uterus and will be able to fertilize during this period of time , but the earlier the better