is it ok to not tell anyone i'm pregnant

When i'm 6 months. i don't have very supportive family nor in laws... plus me and my husband had a rough time trying to conceive,, i just feel like keeping my pregnancy to myself... I don't want anyone to know but me and my husband.. my husband agrees too.. im 3 months already... My in laws and my family won't even care anyways if we announced that we're pregnant... and i don't have any friends so i think it's best to keep our life secret. 🙏