Well hon, you might be pregs! But I see no reason why you can't finish this semester and probably next with no prob. If you are you will be having a summer deliver, I got pregs in October once;) Had my first babe on July 10th. So I think school is a go regardless. I think if I were you I would just wait a week or so, cough up the $ and get a name brand test, like First Response or something and test first thing in the morning. When I am really paranoid, I just do the whole put it in a cup and dip the stick, that way I know I did it right!! By twelve weeks you should be showing up pregs. If you are still negative, you may need a blood test because that missing period is very suspicious. As far as being old, don't worry!!! PLENTY of people have babies at 36, you are perfect. Heck, I plan to get pregs with the last one at 35 and deliver at 36, I am not worried:) Also, I know your house is small, but it is doable. Baby will be with you for a few months and then maybe you can set up a bunk bed/crib thing in the room. Or leave the crib in your room for a bit. Maybe get some room dividers and set up the dining room as a baby area. I know it is tight, but life as a way of working out when it comes to the kiddos. Hang in there, you'll be alright. If you find out for sure you're not, then you can think on maybe something more permanent? I think after #3 we are snippin' and tyin' around here!!! Wish you the best:)