Almost to 20 weeks but scared

Is anyone else scared to have a late miscarriage? I'm almost to halfway and I always see post about it happening at 16, 17, 18, weeks etc. I'm so scared. It makes me so nervous. Every time I go pee I'm so scared there will be blood. Just want to get through these next few weeks. 😓 anyways to keep my mind at ease? I have a Doppler but can never find her heartbeat, just the placenta whooshing and all those little noises.