I just gave blood today (for the first time) and now I'm really lightheaded. I passed out completely right afterward, but I expected that to happen. I'm also due to get my period on Saturday, but for the last few days I've already had some spotting and weird bloody good - not period, like spotting mixed with thick sticky discharge. I'm on HBC to deal with bad cramps and to avoid passing out so often when on my period. Should I just take the pills like normal and let the period come, or would it be better to try to stack my pills? I'm just wondering what kind of influence the blood loss is going to have on my period.