I'm supposed to have my period in 4 days (according to glow, which i feel is wrong because my cycle is ALWAYS 28 days and today is CD 28) but my boobs are bigger (they're getting bigger every day), I'm bloated, and having a lot of gas. I just feel different this month! I took a CVS Digital pregnancy test first thing this morning and it came back "not pregnant"... should I wait and see if my period comes or is late to test again and maybe test with a different test? I'm supposed to get a tattoo next week should I wait until I can be sure I'm not pregnant?