so im not on birth control yet, a matter a fact, my appointment to get an IUD is in 2 weeks. me and my S/O did not plan on having sex so, he didnt have a condom with him. we didnt do it long enough for him to finish. in fact, i told him to stop only about a few minites into it. i think i will be okay but it has just been on my mind since pre-cum can still get you pregnant. should i be worried??