4 days late

Soo husband and I have been ttc for almost 2 years (coming this November) with no luck and I'm 4 days late for AF but because I've been getting so many BFN I'm scared to test now and get another BFN again and feel sad! I dnt want to have my Hopes high or tell anyone about it because of past negative test. I feel like it will just be negative again! I guess I'm writing here to get some encouragement n hope