3 days late!

my period was due three days ago and no sign of it. my boobs are tender and my husband says they look bigger. I feel bloated and sorry Tmi have had diarrhea first thing in the morning for last 4 days. we have been ttc for the last 5 months and I'm to Nervous to test. Are those enough symptoms to test or should I wait a few more days ?? thanks in advance!