Sad but hopeful

I took a test this morning and it came out negative, but it's still 4 days before a missed period and I know that this early, the tests are only about 53% accurate. my hudband and I had unprotected sex about three weeks ago and he did cum inside of me, and for the last week ish I've been feeling really nauseous, cravings for foods I haven't eaten in years, but also food aversions, and I've been overly exhausted/fatigued. I'd be lying if I'd said that I wasn't sad about this being a negative, but I'm going to retest on Tuesday and I'm hoping that this was just a false negative. any sort of advice/words of wisdom would be nice and encouraging right now ):