I had sex and the next day I got my period as it was due. The guy told me he had finished inside me so I took plan b. After that, my period became very light and has been for 3 days after I took it. My stomach is super bloated. I'm wondering if this is normal because I've taken plan b before and haven't had a problem. Granted, this is the first time I've taken it and actually been on my period, as well. Please let me know!