I don't know what to think

Niyana Denyce
I'm 5 days late oH NO !!!! I've taken 3 test and all read negative. I've been having lower cramps for 3 days and took a nap yesterday and was a tad bit nauseous throughout the day yesterday! Could I be pregnant or do you think my period is changing? Help please ... I have 2 children and they were both different pregnancies (so they felt different) this feeling is closer to how I felt being pregnant with my daughter (#2) my first pregnancy was a breeze very easy ... Which was my son.