hi, me and my bf masturbated last on 22 may and I had my last periods on 29 April while masturbating I gave him hj and he ejaculated and I got some liquid on my hand ,though I wiped it bt I hv a doubt dat were there any sperms on either hands ,coz he too fingered me with the same hand BT his hand was dry .well according to the date I got my periods on 27 may BT I still have a doubt dat is it period or m I pregnant ?