Very confused and upset

Emily

May 29th I found out I was having baby #2 a few days later in the middle of the night I was cramping really bad I kept going to the bathroom to check myself and once I saw there was nothing I took some ibuprofen and went to sleep. That morning I woke up to my shorts covered in blood so I’m thinking okay I started my period. It lasted 5 days like it normally does. Now it’s been a week and three days since my last period so I took another test and it came out negative!! What should I do should I wait a couple more days then take another one or should I call my doctor?