How long will it take to get pregnant if your partner is taking steriods and we are using a ovulation kit we have been trying now for 9 months ?

No one knows: There is no way, outside of in vitro fertilization, to reliably predict the timing of a pregnancy. I'm not sure what sort of "ovulation kit" you've been using; timing intercourse with presumed or expected ovulation can be helpful but is no guarantee. If you have been trying for over a year, or have specific health concerns, a fertility specialist may be able to help (but still can't predict!).

Have partner checked: If your partner has been taking steroids like testosterone to increase muscle mass or sports performance this can be a big problem. Steroids in high doses can actually slow or stop sperm production. He should have a semen analysis to determine if there are any problems.

What steroids?: Do you mean Prednisone for a sinusitis? Probably unimportant. Do you mean synthetic androgen for body -building? Bad idea. The banned ones are risky, questionably effective, and illegal. The others are risky and questionably effective. Androgenic steroid supplements all suppress normal testicular function - big chest but no sperm. I'd have him stop.