Lower left dull cramp

Madison

Ok, I start my period in 4 days and today I’ve been having a dull cramp/ache on and off on my left side all day. I normally cramp all over a week before my period but this is a different feeling. I’ve been TTC for over a year and I don’t want to get my hopes up but I’ve never had this before. I usually spot before my period and I haven’t done that either. Is this normal?