Experts at the Royal Zoological Society of Scotland believe giant panda Tian Tian "conceived and carried a foetus until late term, but then lost it".
We are all saddened by this turn ofevents after so many weeks of waiting.
Timings are difficult to pinpoint atthis moment, but we had a meeting this morning where Tian Tian’s behaviour and hormone results were reviewed and have come to the conclusion that it is very likely she has lost the pregnancy.
Giant panda Tian Tian is not expecting a cub, keepers at Edinburgh Zoo have confirmed.
A zookeeper at Edinburgh Zoo, where it is hoped that Tian Tian the giant panda may be preparing to give birth, has said that so far she is "sticking to her normal routine".
Sharon Hatton said that Tian Tian is "doing very well" but that the zookeepers are "not seeing any changes" to suggest that a birth is imminent.
Tian Tian is looking rather relaxed this morning, despite news that she may be about to give birth to the UK's first giant panda baby.
Tian Tian (meaning Sweetie) and Yang Guang (Sunshine) arrive in Scotland from Ya'an reserve in Chengdu, China.
The pair are introduced at Edinburgh Zoo and shown to a specially made "love tunnel", but they only go as far as wrestling.
The zoo launches a “panda-cam” so people across the world can watch the two giant pandas in the run-up to mating season.
After failing to show signs that she is ready to mate, Tian Tian is artificially inseminated.
The zoo's plans to carry out an ultrasound to see if Tian Tian is pregnant are shelved because it is deemed too risky to sedate her.
The Royal Zoological Society of Scotland reveals that hormone changes indicate Tian Tian may be pregnant.
Specialist staff from China arrived over the weekend and incubators are ready for what will be the first giant panda baby born in the UK.Read the full story ›
Edinburgh Zoo has said "not to get too excited yet" over rumours that its resident female giant panda may be pregnant. Tian Tian is one of only two giant pandas in the UK, and was artificially inseminated in April.
Confirming a female panda’s pregnancy is never straight forward and we would encourage people to try not to get too excited just yet – I know it is easier said than done though!
Further hormone results will be available roughly by mid-August that will add to the picture – if Tian Tian is not pregnant specific hormone levels should drop back down to zero.
Edinburgh Zoo's resident female panda Tian Tian may be pregnant, the Royal Zoological Society of Scotland (RZSS) has revealed.
A second hormone rise in progesterone was confirmed on Wednesday, which indicates she may be expecting a cub or experiencing a pseudo pregnancy, after being artificially inseminated in April.
If there is a cub, it could be born between late August and September.
Giant pandas Tian Tian and Yang Guang were out and about at Edinburgh Zoo today following an artificial insemination procedure that took place over the weekend.
Veterinarians will conduct an ultrasound scan on Tian Tian in the summer to see if she is pregnant.
Edinburgh Zoo has revealed more about the artificial insemination of Tian Tian - the UK's only female giant panda - after she failed to mate with the zoo's other panda Yang Guang.
A combination of frozen and fresh semen was used belonging to Yang Guang and another panda called Bao Bao.
According to the zoo, using multiple samples allies with the panda’s natural mating strategy to maximise the chance of successful breeding.
Iain Valentine, director of giant pandas, said: "It would have been amazing if the pandas had mated naturally, however artificial insemination is the next best thing for the overall global conservation effort and the individual biology of Tian Tian our female.
"Like IVF, artificial insemination is essentially an opportunity for science to give nature a helping hand".