Info!

Hello. I had a  miscarriage on August 2015...  (The baby did not have heart beat) 
Now my period is a few days late (that never happen) and Im having/feeling a lower abdominal pain, like in the right side... 
Do you guys think that I can be pregnant?  To be honest I am a little scared because I have pray so much for a baby and I dont want to go to the same process again .. 
You think it can be another thing or should I go and buy a pregnancy test
Thank you