Due date friends

Evelyn • 24 & happily married to my 30 yr old hubby! 8 yr old DD, 2.5 yr old DD, 9 month old DS, expecting 4th by surprise! :)
Is there any way to add people as "friends"? I'd like to be able to follow women with similar due dates. Does anyone have IG? That's my mommy outlet but I haven't announced there yet.