A pregnancy test can be used to detect pregnancy while breastfeeding, as long as the chorionic gonadotropin levels in the urine and blood rise significantly after a woman becomes pregnant, so it is also possible to use a pregnancy test to detect pregnancy. There is no difference between pregnancy and normal pregnancy, except that during breastfeeding, due to the influence of breastfeeding, many women’s periods come only 3-6 months after giving birth, and some even take 8-10 months to recover, so it is easy to ignore them, and many people think that they will not get pregnant during breastfeeding, so they do not take contraceptive measures, which leads to more unintended pregnancies during breastfeeding. So during breastfeeding, you should do a good job of contraception, 3 months after delivery for flat births and 6 months after delivery for cesarean births, if not, condoms are recommended.