I had my period after I had sex with my partner.is it safe for me?

Safe for what?

If you're talking about pregnancy, no, there is no "safe" time to have sex. Any time you have sex, especially without birth control, pregnancy is possible.

If you had your normal period since you had sex, then it's unlikely that you're pregnant, but there's no way for anyone online to know if it was a regular period, or just bleeding (which can happen during pregnancy).

If you're not ready to be a parent, you're not ready to have sex.

Good luck.

No... there really is no safe period... not between the first time you menstruate... until the very last time you menstruate after menopause ends.