French a-level but I speak French

Some unis used to exclude native language subjects but that shouldn't be the case any more. They might exclude it for other reasons - because it's not accepted for a specific course, or if you took it early, but not whether it's your first language or whatever.

Probably a bit early, but you can always email some potential choices to confirm their policy.

It's not my native language, it's my weaker language so I think that should be fine.