Could I possibly be pregnant? Advice/suggestion needed!

I’m wondering if there is a chance that I may be pregnant or not. I have been having unprotected sex since January 31st. I don’t take birth control, we do not use a condom, he doesn’t pull out and he finishes in me every time. In February I had sex a few times before and after I got my period which was February 18 - 24. My cycle is pretty consistent so I have an idea around what time of the month it will come. I had unprotected sex about 3 times since the beginning of March to about the 5th of March. We haven’t had sex since. My period has not came yet, but there is still 13 days left for the month to end so maybe it will come before then. I’ve been pregnant in the past, so I know what pregnancy symptoms feel like because I experienced tender breasts, morning sickness, and sensitive smell. Unfortunately, I have miscarried two times in the past when I was about 6 weeks pregnant. I took a Clear blue digital pregnancy test this month on March 14th, which reported negative. I have not experienced pregnancy symptoms but I’m very curious to know if my period is just late or I could really potentially be pregnant. When would you ladies recommend I take another test? The app says I can expect my period to arrive in 4 days. Should I wait until then to test again if I see it doesn’t arrive? Thanks!