Panicking

Me and my BF decided to try for a baby a few months ago but we have now decided that it's not the right time we booked a holiday for August and he's said he doesn't want any kids yet I'm now 5 days late on my period !! I'm scared to do a test and I'm thinking if I am pregnant it will wreck our hole relationship at this point in time as we are not on the best of terms as it is and abortion is not an option to me at all I'm really scared in what to do 🙈