My female golden is now 2.9 yrs old. We planned on spaying her but some or the other health issues prevented it. Like last year she was diagnosed with babesiosis, so we postponed. She just concluded her heat last month. Now we are planning. My question is, is there any risk if we don't get her spayed at all. We have a large yard and she runs around in that during her heat, so no risk of unplanned pregnancy etc. please advise. Thanks.