Oral surgery right before period ?

Soo husband and I are TTC but I have to get oral surgery done and I am freaking out!! I know I need it and if I wait could cause teeth damage/ problems but at the same time the only available time they have is two days before my expected period! Which means I would know if I am pregnant or not ! And if I am pregnant would it harm the baby?! I am freaking out it’s partial sedation for teeth extraction, and I can’t even do it in March due to business trip till the end which would put me in the same perdiciment