It's still so early for you hun, don't pressure yourself into feeling "okay". Take all the time you need to feel everything you need to. It's been 3yrs since my loss and I'll admit I still feel a sense of sadness when I come on - I'm on just now and came on on the anniversary of my loss two days ago! How's that for cruel. Horrible reminder.
I remember my first period after my loss though, and I cried and cried. Just awful. It brought back the whole experience, and that's always what my periods have been to me now.
So sorry you're going through this hun
xo