Haven’t had a period

I was supposed to get my period on the 31st and it still hasn’t come

I been having these mild cramps for like 2 weeks now and been feeling sick and real bloated for the last two weeks.

The only reason I haven’t took a pg is because every time I took one in the past it was negative and I’ll end up getting it.

Right now my nipples hurt I’m still having mild cramping now it went up to my bellybutton and one side of my stomach keeps hurting but it’s a come and go pain.

Help help please