Help plzzzzzzzzzzzzzzzzzzzzzzzzzzzz…

me and my boyfriend are together for 1 year ... he waited for me first six months he didnt flirt with me only kissing even i was not allowing him to kiss me for the first 3 months too much after the 5th month he started flirting with me...but even i was not allowing him to flirt and touch my whole body all the time i was puting limits and he was accepting it...and he was and till now he is doing all the things i want...and he never opened the subject all that 11 months.this month he started saying that he wants to have with me but i dont want to do that because i want to have with the one person who is my future husband ...i would be glade if my this boyfriend become my future husband but noone knows what will happen between us...anw he is telling me that he needs three more years to engage with me and he needs after that 2 years to marry ...so i dont think so that i will be able to wait to have with him till that time because i have the desire in me of having with him but i am afraid to lose my virginity so plz help me and give me advice plzzzzzz