I was wondering my cycles tend to be like this: 1 month 27-28 day cycles with less painful cramps and less bleeding and shorter. The next month it is 32-34 day cycles and painful cramps heavy flow and longer flow. Is this normal. I have had 2 mc and 2 d&c on in jan an done in july. I have been diagnosed with 2 copies of MTHFR and am on Prenate Elite and baby aspirin.