Might be pregnant?

**UPDATE: NOT PREGNANT**

My period was supposed to get here the 24th and finish the 31st of December, but so far I haven’t gotten my period since the past month. I had sex with my boyfriend at around 3am the 23rd of December; unprotected sex. It was his first time, not mine since I’ve had sex before, but I still believed he was gonna pull out. I had to leave so I don’t think we finished. He says he didn’t cum, and actually I don’t think he did. I’ve heard that some guys, especially when it’s their first time, release some kind of cum DURING sex and that it could still get the girl pregnant. I get really wet during sex so if he was cuming we wouldn’t have been able to notice. I haven’t experienced any symptoms so far. Also my period is irregular so sometimes it skips a month.

I am currently 15 years old, 3 months away from turning 16. I love maternity and would of course love to have my own children, but right now it’s not the the time. I got goals for school and sports! Plus my boyfriend and I have only been together for 3 months. He is a really good guy! But you never know what will happen. Anddd he turned 19 about a week ago. So a baby on the way would probably cause him trouble.

Any help?