My period was on the 19th of May and me and my boyfriend had sex on my period may 21st and he did release sperm, we also had sex on the 24th of may, and the 25th of may, we also had sex on the 31st of may and the 4th of June. And my doctor told me that my period isn't due until the 13th. So when should I take a pregnancy test?

Good luck, since it appears you are trying to get pregnant, but you will wait till a week after the period should be there. ( assuming you don't get the period in June)

If no period, try first test about 25th of June and if it is negative try another one in about a week after that.