Has Anyone Ever Bled A Week Before Your Expected Period And Stopped On The Second Day After Ttc For A Baby

Like my husband and I are ttc for our #3 baby and so we had sex during our fertile peak of ovulation and everything. A week before my period is due I started bleeding and cramping and it didn't appear to look like my period. But I didn't know what it was. So I decided that if I stayed on longer than three days I would decide it was my period and if not longer than two days I would consider it being implantation bleeding. Because I know every pregnancy is different. So can someone please help me out. I will be testing Tuesday of this week praying that I get a positive.