Is this leg pain normal?

Mo

I'm 40+2 and haven't really had leg pain since I've been on maternity leave a month ago. But today my legs were hurting like I'd been on them all day, but hadn't actually done anything extra or out of the ordinary. Now I'm in bed and my right leg especially is just progressively hurting more. It's extremely uncomfortable when I bend my knee all the way from the top of my calve, back of my knee and a little bit hamstrings. It feels like bad growing pains.

Is this normal? I'm just paranoid this far along that something might be wrong but I don't want to freak out over nothing. 😬