Request for WFH or HL?

Hi! Need some advice from all the working mum-to-be! I am currently 8 weeks, sometimes I will feel dizzy and light headed. I have to work 2-3 days every week, and commuting to and fro office will be 3 hours! (1.5 hrs + 1 5hrs) I am thinking on my 10 weeks appointment with my gynae, should I request gynae to write a memo for me to WFH/HL until I safety reach 2nd trimester? Not all colleagues wore mask in office, I feel safer to work at home especially I am still on my 1st trimester (not even mentioning those pregnancy symtoms!) I know some gynaes are not willing to give HL easily... but if I request WFH will it be easier?