I have a 7 month old baby and I'm still breastfeeding. Well I have had regular on time periods since having him, and now I'm 7 days late. I'm having mild cramping, headaches, and my boobs are a little sore(which they haven't been in months). I think I may be pregnant again, but I've had nothing but negative tests. Should I wait longer and test again, or is my period just not going to come this month, but I'll still get the cramps associated with it?