So I used a OPK test to determine that I ovulated on the 6th of December. On about the 13th I started losing my appetite, having gas pains, bloating, etc. then started to bleed on the 15th. It seemed to be implantation bleeding as it was old blood and fairly light compared to my period. Bleeding ended Monday 12/18. Got a PPT on 12/19. Didn’t test again until 12/21 and got a negative. So obviously I had a chemical. My period should have arrived on 12/20 but didn’t. I realize with a chemical it should be arriving later than anticipated l but we are coming up on a week late. Should I call my dr? Or was the bleeding on 12/15 a period?