Can I have intercourse after my period yesterday?

Your period ended yesterday, so try to take a day off before having intercourse.
During menstruation, the cervical opening opens and menstrual blood is discharged due to changes in hormone levels. If you have sex during menstruation, it is easy to bring bacteria into the uterine cavity and cause infection.
If you have sex during menstruation, it is easy to bring bacteria into the uterine cavity through the cervix, which may cause uterine infection. Therefore, after the menstrual period is completely clean, try to interval another day, that is, the third day before coitus.
Normally, sexual life should pay attention to good cleanliness and hygiene, to avoid causing vaginitis, cervicitis, uterine cavity infection and so on. If itching and other uncomfortable symptoms occur, go to the hospital if necessary.