Dear Team,I Had Intercourse Yesterday Wid My Lady N Just

Dear Team,I had intercourse yesterday wid my lady n just before the sperm throw i took it out and after that due to mind diversion i did not cummed but i have seen many time that before the sperms comes out in a throw there is a bit jealy like something comes out so is that also sperm n weather it can be the reason for pregnancy,my lady is expecting her period on 14th so can u be able guide what precautions we can take because she dont want pregnancy.