Still a chance?

Today marks 6 days late for AF. My husband and I have been trying to conceive (A LOT) and I’ve been feeling a bit nauseous/acid reflux. My nipples are extremely sensitive I’ve been crampy and my stomach has felt super bloated and almost distended. I’ve taken a few tests and they’ve all been negative. Could it be positive I’m testing too soon and could still be pregnant? Or should I not get my hopes up?