A retrospective study examined whether growth restricted babies have fewer oxygen reserves to deal with during labour.

Find out how much weight to gain if you're pregnant with twins. Have a look at the twin pregnancy weight gain chart from The National Academy of Medicine.

Have a look at twin pregnancy week by week pictures of twin pregnancies at all stages. Share your own twin pregnancy belly pictures.

Read about pregnancy week 36+0 to 36+6. You’re now 37 weeks pregnant with twins.

Read about pregnancy week 35+0 to 35+6. You’re now 36 weeks pregnant with twins.

Read about pregnancy week 34+0 to 34+6. You’re now 35 weeks pregnant with twins.

Read about pregnancy week 33+0 to 33+6. You’re now 34 weeks pregnant with twins.

Read about pregnancy week 32+0 to 32+6. You’re now 33 weeks pregnant with twins.

Read about pregnancy week 31+0 to 31+6. You’re now 32 weeks pregnant with twins.

Read about pregnancy week 30+0 to 30+6. You’re now 31 weeks pregnant with twins.