0n 15th February 2018, my fiancee fingered my vagina. He may have touched himself too and so may have had a little semen in his fingers (mostly dried). It's noteworthy to mention that I am a virgin and never have had penetrative sex. With reference to all the conditions above, is it possible that I could be pregnant? PS: My period was supposed to be on 22nd February but it hasn't happened yet.