My son is 4 months old, I am 18 yrs as well as baby's father, well we have had problems & are not 100% together right now but he took me to dinner & we did it in his car & he came inside me, I just got off of my period less than a week ago. What are chances it'll turn into pregnancy & besides plan b, what ways can I prevent it? (I have no way of getting medications like plan b) I know it's my fault but goodness I'll takw myths, wives tales, guesses, any ideas on how to prevent this naturally