My re thinks I ovulated sometime yesterday but said I had time still for an IUI today (morning). Can I still get pregnant or were we to late this mth?

Yes. Yes the egg once ovulated normally stays around for about 24-36 hours. You can never pinpoint exactly when ovulation occurs. So even if you may have ovulated yesterday, doing an IUI today is still reasonable. Tomorrow would not be worthwhile. Yesterday probably the best day. But yes she could still get pregnant.