Hair loss due to unwanted 72? Hair loss?

My partner had taken unwanted 72 within 5 hours of intercourse on 12 april 2017 .. ans she got her regular periods on 27 april to 1 may... ( normal and regular bleeding happened) Is there any chases of pregnanasy ? She is faving huge hair loss from last 5-6 day ? Any need to worry about hair loss ? Is this will cause alopecia ? Is this hair loss due to unwanted 72 ? When will be second period ? What if she missed secong period ? Any need to worry ? She has taken treatment for hair loss previousky but now She going to repeat it .. folllihair tablet and some minixodil hair drop and oil and shampu ( as prescribed by doctor ) is it ok to repear doctor treatment or hair loss ? How muxh time it will take to reduce hair loss ?