So scared of miscarriage

Sky • Expecting baby boy due June 18th 💙
I am 8 weeks now, had first ultrasound at 6 weeks baby was all well and good, i have been staying positive and happy but sometimes I wander is my baby okay? Have to wait until next ultrasound at 10 or 12 weeks but feel like that is so far away :( just hoping my baby is growing normally.. My boobs are no longer sore and the only symptom I have still is all day sickness, tummy is still wry bloated and hard. Also I took my prenatals for a week but they made me sick so I haven't taken them since, am worried that I should be taking them.. Anyone else have these scary thoughts and think the worst but found out baby was fine? I know everyone's different I just need some positivity to ease my mind..