Is anyone else on citalopram?

K
I've been on citalopram for about 3 months now so not too long. I've read in early pregnancy it can cause heart defects in the baby. I've had some symptoms and really think I could be pregnant so two days ago I decided to stop taking it but yesterday I came up in a fever and cold sweats and felt awful and puked a little. Now I don't know if this is due to not taking the citalopram or just a bug going around. Does anyone have any experience I'd be grateful to know? Obviously can't ring my doctor yet as I don't have a 100% positive test. TIA ✨