Trying to conceive

I was 16 weeks pregnant i found out i was having a baby boy I was to excited because i have 3 beautiful daughters I was so thankful n happy that I finally got my baby boy and then the following week I when for a check up n they told me that there was no heart beat I lost my baby boy on December 5 2017 i was so heartbroken i just broke down n i ask god why me y my husband broke down too because he wanted his baby boy so bad n i had my D&c; on December 14 2017 and after that my husband been trying to get me pregnant but it’s not working trying n trying hopefully I get my baby soon