depressed

AFTER 3 YEARS IM FINALLY PREGNANT I THOUGHT I HAD FERTILITY PROBLEMS FROM BEING ON DEPO SHOT . I cheated on boyfriend off of revenge biggest mistake and I pray it's his because the other was a pull out. We tried for 2 years and no luck until now I know I had sex with him day after OV don't an abortion any thoughts to ease my mind of course if I have I'll get a DNA test so DO NOT GET ON HERE TELLING ME THAT!