Welcome to icliniq.com.
I can understand your concern. According to your statement, you had unprotected sex on 5th July (withdrawal method) and took Unwanted 72 within 48 hours of sexual intercourse. Your end day of the last menstrual period was 29th June as your period was starting from 24th June.So why are you worried or tense? I do not understand your worries.
Firstly, your unprotected sexual intercourse was taken place during your safe period. In safe period, you do not become pregnant from any unprotected sexual intercourse. The 9th day, from the last day of your last cycle to the 16th day total of seven days are your danger period. In danger period, unprotected sex may make you pregnant. The rest 21 days are known as the safe period.
As you had sexual exposure during your safe period and took Unwanted 72 within 48 hours, so you do not become pregnant from that sexual intercourse.