could I get pregnant?

so I have an appointment to get my IUD put in tuesday. me and my partner had sex right before ovulation with no protection like 2-3 days before ovulation and he’s one of those when he gets turned on his tip of his penis gets wet could that have any precum? we went about 4 rounds and the wetness happens every time he gets turned on. I was wondering if there is still a chance of pregnancy if I ovulated before my iud was put in?