 [ Symptoms ] stomach pain hard chest pain the only time i do not feel the painis when i sleep [ Disease ] hello any time you have sex there is a chance of pregnancy i say you should take a test it might not be enough time away from the time you had sex so you might have to wait a while also sometimes periods like to play what i call peek  a boo it might start back up stress is definitely a huge part of tons of menstruation problems so try to relax i hope i helped   jg