Need advice

My bf and I have been having unprotected sex for 8 yrs we had one miscarriage 2 yrs ago. Well I am a week late but I have been having diarrhea, nausea, sore breasts and no appetite. I am scared to test because I don't want to be negative and I get my hopes up but I sort of want to see. What should I do? I want to be pregnant so bad but it won't latch on😢😢😢😞😞