Hi all, I am one to overthink everything and this time it's about being on the pill and getting pregnant. From my understanding, you cannot become pregnant on the pill AND have your period after you've become pregnant (clarification: I know you CAN become pregnant on the pill but if you DO become pregnant while on the pill you CANNOT have your period) but I have heard of spotting when the egg plants itself in the uterus. Now my question is, how can you tell the difference between your period and this post-pregnancy "spotting"? For example, is there a difference in colour? Frequency (continuous [period] or once every few days [pregnant])? Amount of blood expelled? Etc.