I'd say you'll probably be okay, but there's always that chance... How well can you ventilate the area? If you're feeling that worried about it, call your doc/nurse & ask them. If they think you've done okay so far in your preg that if you can ventilate well & wear a mask & be okay, then go for it. If you've got some extra cash though, call a local middle school or high school-some schools are back in session already (or will be soon if you can wait) & kids will be looking for service projects to do. They have to volunteer the time, so you can't pay them, but you could certainly feed them well for their time. Just make sure you protect them-ventilation & masks, frequent water/air breaks...
Remember though, women have been having babies since the beginning of time & you can do more than you think you can. It's more a matter of keeping on the safe side than you not being able to do it.