why do i keep having dreams that i am pregnant with baby #3?

but i am not... i am on my birth control for 2 years now.: my baby daddy left me .. i have no partners i am a single mom of 2 babies .. doing it on my own peacefully practically ... for a week straight or maybe more i been having a dream i am 28 weeks pregnant and boutta pop and give birth .:: 😫😫😫😫😫 i am not even thinking about having more kids or pregnancy at all.. i may be stressed out yes