Hanging out on my period??

I posted last night about my fwb wanting to go on a really nice walk somewhere this week which is definitely not fwb-like right? Anyway we were both free different days so it can’t happen this week. He was free Friday but I wasn’t until the afternoon. I was going to say to hang out but I realised I will be on my period. Should I ask? We’ve hang out before when it was totm but should I mention we can but it’s that time or should I just leave it.

It’s a bit of a strange situation because it’s not a normal fwb and sometimes we hang out without sex but I don’t want him to think I’m only just about the sex if I mention that nothing freaky can happen if we were to hang out.

I was planning to say “I was actually going say I know I said I wasn’t free friday but that’s if we were to do a half day hike but we could hang out in the afternoon or something but just realised it’ll have to be pg hang out (what we call it) lol. If not I’m happy to do something next week

Should I just not mention anything about hanging out?