The gender of the baby is not made to order. Hope your husband and mil can accept that. Please don't be pressured. You can opt for NIPT test earlier in your pregnancy to confirm the gender.
Just to share, during initial scan , sonography suggest my baby is girl but few weeks later closer to EDD , the scan confirm boy
What matter most is baby healthy. Anyway if u are really concern, then u gonna wait and ask the gynae to scan to find out
The gynae says most probably a girl and it is true. I got a cute baby girl
You can wait a few weeks more for the next scan to confirm
Ann