How far apart did you have your kids?

My daughter is 18 months old. I had her a month after I turned 18. Next year I'll be 20. I don't plan on having another baby any time soon but I have had soooo many signs that maybe it will be sooner than I thought. My 2 neighbors who I only see every couple of days and I dont ever really talk to them.... They are always saying how blessed I am to have my daughter and how beautiful she is. They always ask and I quote "when are you going to have another one of those beautiful babies" also when my daughter was little and she was going through her milestones they would always say. "Wow she's running through them early. Looks like she's getting out of the way for another one". I was in the store with my mom and my daughter 2 days ago and my mom was talking to the cashier about my daughter and grandkids. My mom said "yeah hopefully my other daughter can give me a few grand babies. My son out in Texas has one and another on the way and hopefully this one can give me about two more. Like what the hell. Talk about pressure.... I mean don't get me wrong... My family looooves babies! They adore Tristan (my daughter)... I just don't want another child right now? Maybe later when my daughter is potty trained I'll think about it but yeah I just don't know. So my question is how far apart are your kids and also when did you have them?