Oxford researchers are giving hope to would-be-parents with an embryo test that could increase future IVF pregnancy success rates from 30 to 100 per cent.At the moment many cycles of IVF do not lead to pregnancy because of chromosomal abnormalities

really is wrong with you or your partner – or that the current available tests are not good enough to pinpoint the problem that is preventing you from falling pregnant. Around 20% of couples who fail to get pregnant are likely to be given the diagnosis

. The sperm of older men is more likely to appear abnormal, which is linked to fertility problems. Men whose sperm seemed normal had a 22% increased chance of becoming a father compared to those with less healthy looking sperm.It was previously thought

for abnormal cervical cells, including a cone biopsy. This meant that her cervix had been shortened and she had developed cervical stenosis, and would therefore have difficulty getting pregnant. She had already experienced a miscarriage at just 6.5 weeks