Can pre ejaculate pass through thin fabric and cause pregnancy? I'm not sure if there was pre ejaculate. I was having my night gown and he wasn't any.

Here are some... Your described scenario should carry an almost zero odd to conceive. In fact, there has been no known 100% contraceptive. Nonetheless, just do HPT in a wk after missing period and repeat it in another wk if the first test is (-) or still in doubt. Meanwhile, you've room to upgrade the practice of safe sex so to heighten avoiding pregnancy and STDs. Best wish...