Stressing!! Possibly prego again.

So iv been pregnant before. And I had a miscarriage about three months in. Now, almost five months later I think I may b prego again... Id be so thrilled yet again I'd b so scared to lose another one this soon. And baby daddy may not be ready for round two of me being pregnant. 
I think this because I am a few days late already, been bloated for over a week and my boobs are so so sore! Just like last time... 
I want to go take a test but I'm scared to. 
If it's negative imma b a little upset and if it's positive imma b scared. Also I dnt wanna run out and waste money on a test to just be late and start in a day or two.  
Dunno what to do!! Help??