does slow rising hcg levels mean boy and higher rising mean girl ??

I got girl and no m/s with DD1 at all.DD2&3 kinda the same not super bad for like 12 weeks and very bad m/s with DD4 for 20 weeks.

My friend Used the FRER test and didnt get a faint line until the day she was due for af and she had a girl!!
My M/S seems to be the same as when I had d/s , My dr said you cant go off any symptoms you once had with prev preg because every preg is different and your body has been through it before. He said people say " My M/S is worse with this one must be a girl" or other way round and then find out it was the same gender as what the prev pregnancy was.
And I guess its the same a pregnancy tests , every one is different!