Is it possible to be having twins and not know

Join now to personalize. Photo credit: Thinkstock. Are there early signs of twins? When will you find out you're having twins? The difference between fraternal and identical twins. Sources BabyCenter's editorial team is committed to providing the most helpful and trustworthy pregnancy and parenting information in the world. Featured video. What are the chances of having twins?

Twins in the womb: Fetal development month by month. Are twins hereditary? Fraternal twins in the womb: 8 weeks. Fraternal twins in the womb: 4 weeks.

HCG levels in pregnancy. Pregnancy Due Date Calculator. New to BabyCenter? Join now. Password Forgot your password? Keep me logged in. Log in. Get the BabyCenter app. Download now. My family hated it — they wanted the reassurance of the professionals — but as far as I was concerned, I had produced one healthy baby, so I would produce another. My body didn't need help. Thinking back, there were tiny clues that suggested this was a multiple pregnancy, but I dismissed them.

When I was seven months pregnant, a friend said she could feel a head in one position but I thought I could feel it in another. I discounted twins, though, because we didn't have any in our family. Then there was the party in my belly that started whenever music was played. The tangle of limbs would kick in all directions, but I put it down to my baby being vigorously healthy.

I went into labour six weeks early — which is common with twins — and as I laboured in my flat, I realised it wasn't progressing like the birth of my son.

His had been four hours of alternating agony and ecstasy, whereas this was just grinding pain that dragged on for the whole day. I had taught myself how to do an internal examination, so I could feel I was fully dilated. I had laboured for 10 hours, but now, instead of a head, I felt something bony.

It didn't feel right at all. I knew I shouldn't push, and I went into hospital later that evening. An ambulance took me to the delivery room, where a doctor examined me. He decided it was a head after all, and I began to push.

After a moment, a tiny bottom and then two legs unfurled themselves from my body. My baby was breech. Pregnant with twins. Different types of twins One-third of all twins will be identical and two-thirds non-identical.

Identical twins Identical monozygotic twins happen when a single egg zygote is fertilised. The egg then divides in 2, creating identical twins who share the same genes. Non-identical twins Non-identical dizygotic twins happen when 2 separate eggs are fertilised and then implant into the womb uterus.

These non-identical twins are no more alike than any other 2 siblings. Non-identical twins are more common. The babies may be of the same sex or different sexes. Are you carrying twins? You might think you're carrying more than 1 baby if: you seem bigger than you should be for your dates twins run in your family you have had fertility treatment It's usually possible to find out if you're having twins through week scan.

If this is not clear from the first scan, you should be offered another one.