A mother-of-three has told of how a boob job saved her life – as she discovered she had cancer after knocking one of her newly-enlarged breasts. Leza Davies, from Telford, Shropshire, believed breast feeding had left her chest saggy and thought implants would boost her confidence. The 33-year-old saved up £4,000 to go from a 34A to a 34D and was pleased with her new look. Then, in April 2012, she was sorting out some washing and knocked her right breast on a door frame because of its increased size. Scroll down for video . Leza Davies, 33, says her boob job saved her life, after she discovered a cancerous lump when she knocked her breast implant on a door frame . Mrs Davies  was told her cancer treatment would leave her infertile. But remarkably, she soon found out she was pregnant after finishing treatment. She is pictured with daughter Araya, now nine months . She found a pea-sized lump, which hospital tests revealed was cancerous. She began six months of chemotherapy, followed by radiotherapy and surgery and is now in remission. She says her implants saved her life, because as she didn't regularly check for lumps, without knocking her breast she might not have discovered the tumour until it was too late. It was after breastfeeding her first baby Brayden, who is now 12, that Mrs Davies first decided she wanted a boob job. 'I was left with saggy breasts after feeding,' she said. 'There was just no tissue left, so I decided to get implants to restore my confidence. 'I thought they would improve how I felt about myself. I didn't know they would save my life too.' Mrs Davies, a semi-permanent makeup technician, said she was happy with her new breasts after having the procedure, and settled down to life as a new mother. She went on to have her daughter, Macy-Rayn, in 2010. But, three years ago she was sorting through some laundry when she caught her breast on the door frame. Breast cancer is the most common type of cancer in the UK. In 2011, just under 50,000 women were diagnosed with invasive breast cancer. Most women who get it (8 out of 10) are over 50, but younger women, and in rare cases, men, can also get breast cancer. Most breast lumps aren't cancerous, but it's always best to have them checked by a doctor. A person should  see a GP if they notice any of the following symptoms: . * an area of thickened tissue . * nipple discharge, which may contain blood . * a change in the size or shape of your breasts . * dimpling on the skin of your breasts . * a rash on or around your nipples . * a change in your nipple's appearance – for example, becoming sunken into your breast . * persistent pain in your breasts or armpits . * a lump or swelling in your armpits . Source: NHS Choices . Rubbing the sore area, she felt a pea-sized lump and her husband Tristan, 36, urged her to visit her GP. Mrs Davies said: 'I was only 30 and didn't think it would be anything to worry about. 'I just went to put my mind at ease. 'The doctor referred me to hospital for further tests. I was told it was very unlikely to be anything sinister, but they wanted to be cautious.' A few weeks later doctors advised her to have a lumpectomy test, and this confirmed she had cancer, which is extremely unusual in someone her age. While breast cancer is the most common type of cancer in the UK, 8 out of ten women who get it are over 50 years old. Mrs Davies describes the pure terror of being given such a diagnosis. She said: 'I was devastated. I just kept crying thinking I was going to die and imagining my children growing up without me.' That July, she began six months of chemotherapy and radiotherapy, but the cancer had spread to the lymph nodes surrounding her breast. She then had an operation to remove five lymph nodes containing cancerous cells, and afterwards doctors were confident she was in remission. However, they said the treatment would probably leave her unable to have more children. She explained: 'Afterwards, they told me they'd got all the cancer but that I wouldn't have anymore children as a result of the treatment. 'I would have liked more, but I was already lucky enough to have one of each and was just so happy to be alive. 'All thanks to my boob job.' Mrs Davies only went to her GP about the lump she had found because husband Tristan, 36 (pictured here with her on their wedding day) begged her to go . Mrs Davies says her implants saved her life and will allow her to see her children, including her youngest baby Araya (pictured) grow up. Now, she urges all women to check their breasts for lumps . However, she soon suspected she might be pregnant and took a test, which revealed she was, in fact expecting. Her daughter Araya-Maye, is now nine months old, sister to Brayden, 12 and Macy-Rayn, five. She describes Araya-Maye as her 'second miracle'. 'The first is discovering the lump. It was less than a centimetre in size, so if I hadn't knocked my breast, I would never have felt it.' 'Who knows what would have happened? I never checked my breasts. I wouldn't in a million years have thought it was necessary at my age. 'I thought breast cancer was something that affected older women. 'Having implants was a confidence thing. I wanted to be able to wear a bikini and feel good about myself. 'But if they'd stayed the same size I would never have knocked them. 'My implants saved my life. I'd ask all women – however young – to check their breasts.' One in five women later diagnosed with breast cancer had originally put off making a GP appointment for at least four weeks . Thousands of women are risking their lives by waiting more than a month before seeing their GP after spotting breast cancer symptoms. One in five diagnosed with the disease had put off making an appointment for at least four weeks, allowing the cancer time to spread and potentially reducing their chance of survival. And one in 20 had delayed seeing the doctor for more than six months, according to a survey of patients. Some said they were scared about what they might be told, while others were worried they would be seen as a nuisance. Women in their fifties and sixties were among the worst culprits, the poll by the charity Breast Cancer Care found, because they wrongly assumed they were in the clear after they had been through menopause. Britain has one of the worst cancer survival rates in Europe and this has been blamed on the disease being detected too late. Breast cancer patients in the UK have a five-year survival rate of 81 per cent, lagging behind many European countries, with France, Italy and Sweden boasting an 83 per cent survival rate back in the mid-1990s.
Leza Davies had a boob job as her chest sagged after breast feeding .
In April 2012, she knocked her right breast on a door and found a lump .
Tests showed it was cancer so she had surgery removing her lymph nodes .
She became pregnant despite being told cancer treatment  causes infertility .