I had a baby about 1 month ago and i had sex 2 times today once my bf cumed some accidentaly got onto my outter vagina . could i be pregnant again >?

Yes, : Yes, you could. If you are not using protection in the form of condoms, etc, the fact hat you had a baby recently will not protect you from getting pregnant again. It can happen with penile-vaginal contact even if your partner does not ejaculate at all. If you are breast feeding, your body may naturally suppress ovulation, which reduces the risk, but don't fool yourself: if you don't want to get pregnant again, stop having sex or use birth control.