Period return after weaning

Ashley • 30. Married for 8 years to my soulmate. Momma to Jack, born on 11.30.16 and Connor born on 3.16.19

For a variety of reasons I weaned my son about a month ago from breastfeeding. I still have not gotten my period. I’ve taken 3 pregnancy tests - all negative. Has this happened to anyone else? Thanks!