Good morning sir I stopped my periods in October...

regarding what supplements in your case :
Femibion1 is suitable until week 13th of pregnancy ( start of second trimester ) , so you can stick to Femibion1 for the time being , and it contain the most important vitamin in pregnancy which is folic acid in the name of folate 
- as recommanded by the product brand , change to Femibion 2 after 13th week of pregnancy 
is there any other specific medications to take ?
no need , unless your OBGYN doctor advised otherwise , and this should be arranged by your regular visit to your doctor 
when to visit your doctor in the first trimester ?
its advised to visit the doctor in when first positive pregnancy test done , as well as revisiting between 6- 8th weeks of pregnancy 
General advices during pregnancy : 
1. See your doctor regularly to check on your health and your pregnancy 
2. Get enough rest
3. exercise regularly
4. avoid smoking and alcohol
5. Avoid taking any medications without consulting the doctor
General advice regarding nutrition during pregnancy?
1. eat healthy foods constantly
2. Eat more vegetables and fruits and avoid fatty and oily food 
3. Avoid fast foods and processed food 
4. Drink enough water