My fertile window started last Friday. We BD'd the 16th-18th and every night over the weekend. I had super sharp pains yesterday mostly on the left side. Today, I've cramped all over down low the whole day since early this morning. I've also had indegestion, acid reflux, and my legs are super achey. We have been on the go a lot this past weekend so I'm wondering if that has anything to do with it. We are TTC baby #2. Maybe I ovulated early (yesterday) and these are implantation pains today? I'd be SUPER excited if so!