question: Hello.  I'm a 38 year old female. A few months ago I had my fallopian tubes removed.   I am now in the process of IVF (second cycle).  A week ago I had two 5-day blastocytes transferred.  Three times during the past week, always while asleep, I have had what feels like spasms in my lower abdomen area.  After the spasm subsides, I have lower abdomen pain.  It subsides after a few moments.  I have no other symptoms (bleeding, fever, etc.).  Should I be concerned?