Ok so I was suppose to start my period a couple of days ago so I took a pregnancy test this morning and it was negative. Since I've started the Metformin my period has been regular on time. I have been extremely tired lately and actually had to take a nap on Saturday. I'm not sure what to think at this point. We've been ttc for a year now and I'm tired of getting my hopes up each month. My period is never late...could it be to early to detect me being pregnant? I don't even have any of my normal symptoms I get when I'm starting my period...not sure what to do or think