Ok so me and my husband are working on baby number 2 well I am not on a regular schedule with AF so it's been kinda difficult but it's ok we figured it would take awhile but AF is about 2 weeks long then I'm off for 5 days then back on..I recently started on the 4th this months AF is so weird is not near as heavy or anything and today I've started getting uterus spasms...what does that mean I've never had uterus spasms before someone help me