Baby honeymoon!! help!! đź’™

Taylor • Sean💍 Chase💙 Lindsey 💜
My husband and I got married in September and never got to go on a honeymoon. I am now 15 weeks and will be 31w6d on our one year anniversary. I was wanting to do a weekend getaway for a honey/babymoon. We live in St. Louis. 
Any ideas on something inexpensive. Something that's not Chicago. 
Gatlinburg is expensive that time of year so that would be out as well.