Baby not standing

My daughter just turned 11 months and still isn’t standing on her own. She crawls around like a champ. She sits on her knees and reaches up at things but hasn’t figured out how to pull up. She randomly does down dog with her feet planted on the ground. If I stand her by the coffee table she’ll hold down if she’s not paying attention. If I put her anywhere else she bends her legs and bounces up and down. I’m starting to worry. I’m wondering if this is cause her babysitter mostly keeps her in an exersaucee and she doesn’t bear weight on her legs. Now that I’m home due to the virus I’m working with her and not putting her in a walker or anything of that type. I’m starting to get nervous. I’m waiting til her 12 month check up to discuss with the doctor hoping she’ll catch up by then