reassurance please

i’m 17 weeks today and for the past 2 days i’ve been feeling normal. like not even pregnant at all.

this happened at 11 weeks but the feeling of heaviness in my uterus came back.

i can’t feel my uterus at all and i have felt it since 12 weeks. you know that heaviness and tugging? it just suddenly went away.

if anyone could give an explanation for this or reassurance i really really need it. i’ve been bawling worrying that something is wrong.