scared to test

My boyfriend and I had unprotected sex when I had my fertile window, I had to wait a while to test. My period is supposed to come in 2 days and I'm scared to test early because last time we tried for a baby we got a BFN 😭 I was so upset about it and we tried again when I was visiting him but I'm so scared to test again because I'm afraid it's just gonna be negative again and I'm gonna be upset all over. My boobs have been sore for about 6-7 days now but of course that doesn't mean anything 😞. 
I hate even thinking about getting a negative test....