How many weeks am i ?

Ni

May i ask if anyone has a due date of 18th march, how many weeks pregnant they are please ? My lmp was 11th of june. I thought i was 5 weeks 4 days but <a href="https://play.google.com/store/apps/details?id=com.glow.android.nurture">nurture</a> is saying 5 weeks 2 days. Im still waiting for my midwife referral so havent a clue on anything yet. Im feeling a little abandoned and scared something may go wrong.