Impostor syndrome in first trimester

Does anyone else feel like a pregnancy impostor? Like you’re just faking everything and then you feel silly when you have to take down time because of symptoms or have to think about getting bigger clothes cos of growing tummy. Like even tho you got strong positives and everything is going as expected they’ll do the first ultrasound and go “actually there’s nothing in there”. Maybe it’s some kind of emotional pregnancy symptom I’m getting but I’m just feeling like a pretender for everything