Hi, I have gone through your question. Cramps without spotting can be due to impending periods or early pregnancy. This can be only confirmed by urine pregnancy test . There can be a risk of ectopic pregnancy in ICSI or IVF. I suggest you to consult an OBGYN specialist if your pregnancy test is positive, so that proper examination and ultrasound done. Hope you found the answer helpful. Wishing you good health.