fetaL deveLopmenT

Conception See what happens inside you during the conception process. Fertilisation How BabyCenter works out how pregnant you are Video: Inside pregnancy (with Malay subtitles) - a 3D animated look at a baby from weeks one to nine
	One month Your baby is an embryo consisting of two layers of cells from which all her organs and body parts will develop. 4 weeks 5 weeks 6 weeks 7 weeks Twins - 3 weeks Twins - 4 weeks Video: Inside pregnancy (Malay subtitles) - weeks 1 to 9
	Two months Your baby is now about the size of a kidney bean and is constantly moving. He has distinct, slightly webbed fingers. 8 weeks 9 weeks 10 weeks 11 weeks 12 weeks Twins - 8 weeks Twins - 12 weeks Video: Inside pregnancy (Malay subtitles) - weeks 10 to 14
	Three months By now your baby is around 7cm to 8cm (3in) long and weighs about the same as half a banana. Her tiny, uniquefingerprints are now in place. 13 weeks 14 weeks 15 weeks 16 weeks Twins - 16 weeks Video: Inside pregnancy (Malay subtitles) - weeks 10 to 14
	Four months Your baby is now about 13cm (5.5in) long and weighs 140g (5oz). His skeleton is starting to harden from rubbery cartilage to bone. 17 weeks 18 weeks 19 weeks 20 weeks Twins - 20 weeks Video: Inside pregnancy (Malay subtitles) - weeks 15 to 20
	Five months Eyebrows and eyelids are now in place. Your baby would now be more than 27cm (10.5in) long if you stretched out her legs. 21 weeks 22 weeks 23 weeks 24 weeks Twins - 24 weeks Video: Inside pregnancy (Malay subtitles) - weeks 21 to 27
	Six months Your baby weighs about a 660g (1.5lb). His wrinkled skin is starting to smooth out as he puts on baby fat. 25 weeks 26 weeks 27 weeks 28 weeks 29 weeks Twins - 28 weeks Video: Inside pregnancy (Malay subtitles) - weeks 21 to 27
	Seven months By now, your baby is more than 40cm (15in) long. She canopen and close her eyes and probably see what's around her. 30 weeks 31 weeks 32 weeks 33 weeks Twins - 32 weeks Video: Inside pregnancy (Malay subtitles) - weeks 28 to 37
	Eight months Your baby now weighs about 2.2kg (4.7lb). His layers of fat are filling him out, making him rounder, and his lungs are well developed. 34 weeks 35 weeks 36 weeks 37 weeks 38 weeks Twins - 36 weeks Video: Inside pregnancy (Malay subtitles) - weeks 28 to 37
	Nine months Your baby is almost due. At birth, the average baby is more than 51cm (20.5in) long from head to toe and weighs approximately 3.4kg (7.5lb), but babies vary widely in size at this stage. 39 weeks Video: Inside pregnancy (with Malay subtitles), a 3D animated look at the stages of labour from contractions to birth
	Month by month with ultrasound images See our summary of how your baby is developing from two months. Within each month, interactive 3D ultrasound images give you an idea of how your baby may look. 2 months 3 months 4 months 5 months 6 months 7 months 8 months 9 months