When is the startle reflex going to disappear ?!?@?

Caitlyn

My LO is 7 weeks old and her startle reflex is still so terrible.. she jumps so hard when shes sleeping kinda goes we jump when we have a dream we're falling lol... but she is constantly waking herself up because of it then is soooo fussy cause shes tired. Is anyone else's LO still doing this ? I dont remember my other twos ever lasting so long