Can sepsis complicate my pregnancy?

Absolutely! That would be an understatement. It can very likely end your pregnancy. I hope this is a hypothetical question.
Yes. Sepsis is a syndrome that is associated with severe infections, and while it can complicate pregnancy, it can occur whether you are pregnant or not. Some infections related to pregnancy such as bladder and kidney infections, or infections of the uterus after delivery can cause sepsis, but early detection by your doctor, and use of the correct antibiotics can prevent this severe syndrome.