Period after miscarriage

sara • TTC #1 after miscarriage. Praying for our Rainbow baby
I had a miscarriage a little over 4 weeks ago and have had cramping and the feeling of starting my period for about a week, but everytime I look nothing. I took a pregnancy test 2 days ago and it was negative. So what I am asking is has anyone who has had a miscarriage experienced this and is it normal? My last u/s I had everything had been cleared out so I know I had a complete miscarriage. My husband and I are going to start trying as soon as we can, so I am just anxious for it to start and get back to normal.