Need advice ...

I am on my 3rd month of Clomid. I had an ultrasound at day 14 and 15 and took the trigger shot on day 15, had timed intercourse. My doctor told me to take progesterone vaginally starting last night which would be 4 days after trigger shot. I inserted the pull before bed and this morning had a little blood when I wiped the first few times going to the bathroom
Is this normal?