Stressed?

Two weeks ago... i had sex... twice in a day. The first time he didn’t cum at all. We used a condom. We just hung out for a little bit after... id say about 4 hours. We ended up having sex again... but it was much shorter... like less than 3 minutes really because we didn’t have a condom and I was scared. He came, but like 10 minutes later because he finished himself. Well I’ve been stressed about it... and now my period is 4 days late. I’ve taken 4 test and they all came up negative. Mind you there was only precum... a small amount because he doesnt have too much precum..and I know about precum and pregnancy... but do You guys think I’m in the clear and I’m just stressing? Or should I test again? I haven’t had any symptoms of pregnancy except a late period and my period was 6 days late last month, and 9 days late the month before.