āWhen does implantation bleeding occur in an expecting mother?ā
My sister is 40 days pregnant. However, just yesterday she had some spotting and bleeding. The doctor said it is not a cause of concern and said it looked more like implantation bleeding. When does implantation bleeding occur?
4 Answers
Implantation bleeding usually occurs at the latest about day 22-23 from day 1 (first day of bleeding) of the expected cycle. It depends where she is in that expected cycle. If it is it should only last a day or two. If longer, Iād go in and f/u with your OB/GYN to make sure all is good.
Richard Aballay
Richard Aballay

Breanna Lynn O\'Keefe
Family Practitioner
If she's 40 days pregnant, she's past the point that we see implantation bleeding (this occurs 2-3 weeks following the first day of a women's last menstrual cycle). Bleeding at approximately 5-6 weeks can be due to a subchorionic hemorrhage or even simply irritation to the now very vascular cervix.