Confused 🤷‍♀️

My fiancé and I had sex on July 4 then again on July 8, the night of July 8 af came. I am very regular I always bleed medium/heavy for 4 days well I bled normal on the 8th&9th but then the 10th-11th I was only spotting( which has literally never happened before). On the 11th I stopped bleeding completely. I am now ovulating and I will be in my fertile window from 7/15-7/21 and my next period is expected on 8/2. I have been having some pregnancy symptoms but I don't want to spend money on a test if there's no way my hormone levels will be high enough to get an accurate result. Do I have to wait all the way until my missed period or since I would've conceived right before my last period can I test sooner??