I had so much anxiety about this! Yes, pre-ejaculation actually can cause pregnancy because it can contain active sperm. If you are anxious about an unplanned pregnancy, please consult your gynac for safe emergency contraception advice.
Oh yes, it definitely can! That's how a lot of 'surprises' happen, trust me. If you aren't ready for diapers and sleepless nights, don't rely on the pull-out method!
Yes, it absolutely can. Pre-cum often carries enough active sperm to fertilize an egg, especially if you are near your ovulation days. If you are trying to avoid pregnancy, always use proper protection.
Yes dear, it is very much possible. Pre-ejaculate can carry sperm, so the withdrawal method is never 100% safe. If you have missed your period, take a home pregnancy test in a few days to be sure.