Hsg Side Effects/pms Cramps

Hi All,

My husband and I have been seriously trying to have a baby for about 8 months. Prior to that we used no contreception so in effect for the last 5 years we have had a chance to get pregnant every cycle. My gyn sent me to a RE this past month to have fertility testing. I have lupus and APL, and that combined with my lucky odds that in 5 years I have never gotten pregnant, led him to think I have a fertility issue. During the routine testing I had an HSG done. I had some blood and cramps for a couple of days and then it cleared up. I did notice after that I felt that I could sense when things like ovulation and CM were happening better. I guess that is because the dye moves stuff around. My period will begin anytime the next few days. I almost always get cramps the day prior to my period, never before and rarely after day 1. I started cramping about 6 days ago. I keep running to the bathroom expecting to find a mess and all I'm left with is unused tampon. Can this be from the HSG or plain old PMS or perhaps pregnancy? These cramps are much stronger than my usual PMS cramps (more like day 1) . I also have soar boobs, but that isn't unsual for me. The cramping is the only thing out of wack.