Ant help!

I really think I'm going to go insane! There are ants in my bedroom. Not a lot, no swarms. It's just like I'll walk in and see 2-3 ants crawling around. It's really driving me insane. We've taken the baby's bed out of our room (I'm 35 weeks pregnant) because I don't want any crawling on that. Then we tried ant traps in all corners and finally my husband sprayed the room down. We go in hours later and still see them in random places! Our room is spotless! There are no crumbs, drinks, food, spills, water. And these ants are only in the bedroom and master bath! None in the kitchen where the food is or dining room where we eat. I can't figure out where they're getting in or where they're coming from. So can someone please tell me how to get rid of them! I hate the sight of any bug. I hate that it makes my room feel dirty even though it's clean! And I don't want them crawling on my newborn baby's bed! Please help me out! I know this may not be the right place but I just need help!