okay..i had my period on hte 18th of may but i had unprotected sex wit my bf onthe 19th n my period b4 that was on the 17th of april.. well i started 19th of may...but two days ago we made out n stuff but i didnt want ot have sex but he put his thing on mine at the openin cus he wanted to do it but i didnt let him go in...could i get pregnant by that or am i jus thinkin too much?!! n this is my normal period?