No, it is not possible for a woman to get pregnant while already pregnant. While extremely rare cases of superfetation have been reported, these are not scientifically proven and are often misdiagnosed.
Superfetation is a hypothetical phenomenon where a woman conceives a second child after she is already pregnant. It's essentially getting pregnant a second time while already carrying a baby. This is highly unlikely, and most cases reported as superfetation are later found to be misinterpretations of other phenomena, like multiple births or delayed implantation.
To summarize:
- It is impossible to conceive a second child while already pregnant.
- Reports of superfetation are rare and often misdiagnosed.
- Medical professionals generally consider it impossible for a woman to be pregnant with two different babies at the same time unless there is a twin pregnancy.