Eek got a BFP today! At 42!

Hi ladies. I got a BFP today period 5 days late, but following 2 miscarriages this year this month we decided not to try. Only BD once on day 17 I ovulate on day 13! The irony!! 
Am going tho a custody battle with domestic violent ex and having to move to a house that it now gonna be too small for a new baby! Eek what to do! Excited scared and feeling very old! Lines are very faint wonder if this on will stick!! Haven't told BF yet need to get my head round all this!! Omg how mad!! Any helpful ideas?? Hugsx