My boyfriend and i had unprotected sex a week after my period. We had foreplay, kissing and grinding then we took a break and then he put me on my back for missionary and he pulled out his penis and it was dry and i was dry at that point. He spit on his penis head and on my vagina outter part so that it would work as lube and he penetrated me for about 10 strokes and then he pulled out because i was uncomfortable. Is it possible for whatever precum that may have dried on his penis possibly get me pregnant? Three days after i am getting cramps and gettin an ache in my vagina. Are the cramps early signs of pregnancy ? I started feeling it 3 days after that happened.