Hello doctor,
Me and my husband have intercouse last night without any o precautions. My period date is 26 may but still I haven't get down. Is me pregnant.

Any time you have penile insertion there is the possibility of pregnancy. However, if you had sex last night it is too soon for fertilization from that session, plus, if your period was due Sunday, its past your ovulation time. So it is unlikely from that session. However if you had sex during May its possible. You will need to wait another 2 weeks to take a pregnancy test.