uneven breasts? reposting!

Laura
Hi group - I posted this am and am reposting, hoping someone new will see.  My breasts had been very swollen the past few days but this am the right one seems much smaller than the left.  My period is due today or tomorrow (so far no AF).  I've never had this as a PMs symptom and I'm now wondering (hoping) if it could be a sign of early pregnancy? I took a test this am and was negative ;(.  I had a miscarriage at 7 weeks in march and would love for this tww to end positively!  Any thoughts??