After the mare is bred, a vet or equine veterinarian can perform a pregnancy check, which is a physical examination to detect pregnancy. A complete pregnancy check normally includes: a thorough examination of the mare, a blood sample, a urine sample, and a vaginal swab. The cost of the pregnancy examination ranges somewhere between $100 and $150. About 30 days after the pregnancy is confirmed another test should be done to confirm the heartbeat. The cost of this second test is very similar to pregnancy test which means that it will cost you around $200 to $300 in total. If the mare is pregnant, she should be examined regularly by the vet.