They should have their progesterone levels tested to insure they have adequate P-4 levels to maintain pregnancy. Call the farm to notify the estimated date that you will want the shipped semen. This gives us sufficient time to collect the stallion and notify Fed-Ex that we need pick up for that day. Your vet should want to palpate your mare every day when she gets close to ovulating. He also needs to palpate 48 hours after inseminating to be sure your mare did ovulate.
Some vets prefer to inseminate two days in a row, some prefer to put all semen in at one time.
This is not proven to be better either way. If the semen is being shipped directly to you, notify your vet as soon as it arrives so that he can inseminate your mare as soon as possible. Do not open the canister until the vet is ready to inseminate. This ensures that we have canisters available for the next person who needs one. Once your mare has ovulated continue to tease your mare to insure that she doesn't short cycle back into heat.