As long as there's no spotting mild cramps are normal. Just your uterus stretching out to make room for baby. Every once in a while I get a sharp pain but just for a few seconds, my doctor told me it was nothing to worry about. Mild period like cramps are caused by stretching, no worries unless there's spotting. Congrats on the pregnancies!
Im also having some slight cramping so I would also like to know. 14 weeks tomorow.