Need advice

​I had a miscarriage on feb 4 and I was only 4 wks 5 days. I had only known for 5 days. When I was at the ER my levels were already down to 4. So we were given the go ahead to try right away. I am now 4 days later then normal. I know your body can need time to adjust.  I just don't know if I should take a test. I'm scared sense I had only known for 5 days... If I wouldn't have tested then I wouldn't have even known and wouldn't have gone through the emotional pain. Thanks for reading. Any advice, similar , or success strories would be Great!