Please help me

My period is 5 days late and I keep taking test but they come up negative. I would have either consieved on the 27th of May or the 9th of June. Is there any way I'm still pregnant?? Normally right before my period i don't have discharge but right now I have really watery sorry tmi. And I have had a gurggly stomach and a pressure in my stomach but not like cramps. Is there any other reason I could have missed my period? Please help