Yikes on the drugs!! I hope it gets worked out quickly!!
Having your period during stims shouldn't be a problem, except maybe extra bloating. I started spotting last night and am bleeding a little today but it is NOTHING like my normal periods (which are usually super heavy the first 2 days). The NP said my lining was thin enough that I should have a pretty light period so that may be all you have. How thick was your lining? Mine was 3.4mm I think.
And good luck cycle buddy! Not sure if you saw in the check-in but there are now five of us on the same schedule. I think we should have a mini group for our cycle quintuplet - the Dec zombie snow bunny apocalypse preparedness team!! :)