to conceive, to become pregnant, to get filled with (e.g. sails filled with wind)...

pregnancy, conception, gestation

contraception, birth control

pregnant woman

infertility, sterility, barrenness

expectant and nursing mothers

pregnancy, conception

to become pregnant

infertility, sterility, barrenness

fertility (esp. of animals)

pregnancy, conception, fecundation

male pregnancy (in Boy's Love fiction), mpreg, father-to-be...

trying to conceive, attempting to get pregnant (through various means)

maternity clothes

during pregnancy, while pregnant

fertility

pregnancy stretch mark, striae gravidarum

notification of pregnancy, informing (authorities) that one is pregnant

fertility

while pregnant, during one's pregnancy

abortion, pregnancy termination

pregnancy test

hyperemesis gravidarum, HG, severe morning sickness

prenatal checkup, pregnancy checkup, prenatal care...

false pregnancy, phantom pregnancy, pseudopregnancy

contraceptive method or measures

contraceptive, birth control drug

contraceptive device, birth-control device

infertility (esp. of animals)

contraceptive pill