Preganant?

So I skipped my period and it's been like 10 days now. I still kinda have period symptoms but they're starting to go away. They're similar to pregnancy symptoms and I'm scared that I'm pregnant. I took a pregnancy test yesterday and it was negative. I just lost my virginity a month ago so maybe it's due to that. Can you have period symptoms and skip your period without being pregnant because it was my first time having sex? He pulled out and wore a condom. I had sex a second time but he pulled out and wore a condom again, but I wasn't ovulating. This was just 4 days ago.