I guess I'm in the minority. I don't believe in breeding crosses, especially when there are so many cross-bred horses out there needing homes. I guess if you plan on keeping the foal it would be okay.
I show and breed Labrador Retrievers and am totally against breeding cross-breeds when there are so many mixes in shelters and rescues needing homes. Since there are so many Lab mixes out there my girls must be special, beyond having a uterus, in order to be bred.
I'm not judging the OP, but just stating my reluctance.
"When you're young and you fall off a horse, you may break something. When you're my age, you splatter." -- Roy Rogers