Zipper Broke?

So it feels as if almost all my pant zippers have broken....none zip up??? GRRRR My clothes are not fitting right, my shirts look too tight or short.....I just look like a dork right now! I can't wear anything right....it feels as if almost this happened overnight, although my clothes have been feeling snug but as of today they feel super tight.....I put on a larger sized jean today and they fit fine while I was standing the moment I sat down ugh! they felt awful! I don't see much of a difference in my body but it may just be me. On a positive note my baby is growing!