Talk to Eye Specialist on Eye Pressure In One Eye

I am two months postpartum. Since the start of my pregnancy I started seeing halos around street light from one eye then it went away and started in other eye and it's still in that eye but lesser as compared to pregnancy.i m feeding my baby now. I went to dr he checked the pressure one eye is 17 and other is 21. Rest all test r fine. Dr said he will monitor pressure now for 2 this eye pressure 21 due to pregnancy? I have parents with glaucoma n sister also have pressure issues.