There is no definite conclusion whether you can have it or not when you find out you are pregnant just after straightening your hair. In the process of hair straightening, you need to use potions for styling treatment, which may have an adverse effect on the embryo. The effect on the embryo may be particularly small because it is only absorbed locally in the hair, but there is no definitive study on whether there is any effect. If you have a strong desire to have children after pregnancy, you can consider continuing the pregnancy and do a full maternity check to see the growth and development of the embryo. If necessary, a full set of chromosomal examination can be done to see if there is any chromosomal abnormality, NT examination at 12 weeks of pregnancy, 3-D ultrasound screening for malformation at 22-24 weeks, and 3-D ultrasound at 32-34 weeks, which are two important examinations to check for malformation and to rule out abnormal fetal development.