Advice?

My period is still a week away. I have been on an emotional roller coaster and had some seriously sensitive and painful nipples, stomach gurgling (loudly), gas, constipated, acid reflux much more worse then usual, lower back pain, lower stomach cramps occasionally and some cravings. I took a test about a week ago and it was negative. I have another test and I’m not sure if or when to test again.

Does anyone else think that it could be just my period or possibly pregnant?