Maternity clothes

Ugh so my due date ain't until January 9th so that means with it getting colder now (here today's isn't even suppose to leave the 50's) I gotta buy maternity jeans 😞 I only have 2 pairs right now, am I the only one who hates buying them? I went to Target to look and they are like $30+ just for 1 pair! Why do they make them so expensive?