I'm pretty sure I'm pregnant

I haven't taken a test yet and I don't want to.. I'll just take care of my body until either my period starts or it doesn't, and in about a month if my period still hasn't started and my symptoms persist, I'll start up w a doctor. I think I'm pregnant bc I missed my period. I've been pregnant before I know what it felt like for me. I've been exhausted I mean completely floored the past few days. I started thinking something was up. And finally today I had the very familiar morning sickness and vomitting. Not the kind of morning sickness you trick yourself into feeling when you're symptom spotting. Actually vomitting laying on bathroom floor feeling close to death kinda thing. I've only ever thrown up while pregnant. Other than being a baby and spitting up. My boobs are huge sore and veiny. my nipples black. The reason I don't want to test or anything is bc of my last pregnancy. That ended in miscarriage. I just have this fear of jinxing it this time around. It's hard to explain.