Hi, I have had spotting twice this week, I think.  My last period was November 18th 2010.  I've always had irregular periods.  I took a pregnancy every week the whole month of December and half the month of January.  This week I started spotting a little brown only when I wiped.  It quit by the next morning, so I assumed that maybe I could be pregnant and that this was implantation bleeding.  Then I started feeling nauseous and my breasts have been extremely sensitive.  I'd been a little short of breath also.  (All of this occurred within a day of the spotting)  Then two days after that (last night) I started bleeding again.  It's been a little heavier but not my period.  When I have my period, it is very heavy and very painful cramps.  I also have been having a little bit of cramps with this last spotting so I'm afraid that IF I am pregnant than I am losing it.  My husband and I have been trying to get pregnant since October.  I can't go to the doctor right now because my husband just switched jobs so we are between insurances for about 30 days.  I need help.