My period is a week late but test say no baby

Brianna • Spread love to women & to those who don't 🖕🏽🖕🏽🖕🏽🖕🏽🖕🏽🖕🏽🖕🏽🖕🏽🖕🏽🖕🏽🖕🏽🖕🏽🖕🏽🖕🏽💁🏽
I have unprotected sex I've taken 3 test they all say no and I have no pms just a lot of thirst but I barely drink because I'm to busy but Ialwaysand slight nausea My last period was April 17th