Could I be pregnant?

Me and my Husband made love the last day of my period. Which it was very light at the time. My periods usually only last for 6-7- days. I was on the mirena for 4 years and just had it removed in April. My first period after it was removed was 6-7 days also. & they both started on the 21. So maybe my cycles are normal now? Is there a chance I could be pregnant..we really want to be. Thanks