January I had intercourse for the first time.unprotected . In February my period came , I had protected intercourse again in March . & I had my period again . Had a period in April , May and a light one in June . Now July I missed my period but I've been kinda down and stressed a lot from having to take a lot of ibuprofen from mouth pains . Is this normal or should I be worried I haven't had intercourse in 3 months I'm 20 should I be worried