pregnant with third

So i just got two faint positives this morning and I'm terrified. I have a two year old and a 4 month old. I wasn't really ready for another and my husband definitely isn't! I don't know what to do, I need to talk to someone but now definitely isn't the time to tell him. He is extra stressed out and if I want Him to take it even a little well I have to wait. Is it appropriate for me to talk with my mom about it before my husband even knows?