4 weeks & 1d ... is exhaustion normal ?!

OMG help please! someone talk to me here .... I'm exhausted ALL THE FREAKING TIME. I can sleep for 8 hours straight after eating breakfast in the morning and won't wake up till 6 in the evening.. and then I'll still wanna sleep..

when I sleep and wake for a VERY VERY SHORT AMOUNT OF TIME I feel like I've been drugged.. it's so hard me to feel energized anymore. My boyfriend has 3 toddlers at home because his crack addicted wife is in jail, I live with them so I HAVE TO BE UP and helping around the house but Idk if I can because ALL I WANT TO DO IS FREAKING SLEEP.

PLEASE HELP !