At what point in my pregnancy do I need to start being concerned about my DP being non-contactable on his phone?

[Lynchian]

I'm 31+4. DP is a rock-climber and takes himself off for climbing trips to places where he may or may not be within phone signal, and I don't hear from him all day. For example, today he left at 4am and it's now nearly 5pm and I've heard nothing from him. He's within phone signal because I've called him twice and it's ringing, but just ringing out to voicemail. He's over in the Lakes, about 2 hours drive away.

Now, I don't want to be a drama queen or a nag, but I'm thinking the further along I get, the more likely it will be that I'll need to get in touch with him in a hurry. With just over 8 weeks to EDD, I know it's unlikely I'll go into labour NOW, but it's not unheard of, and as he's my birth partner I'll definitely need him to be capable of getting home reasonably quickly.

He doesn't seem to understand this though, that anything couild be happening at home and him not answering his phone/checking in every now and again that everything's ok is making me feel a tad insecure.

Unreasonable of me? At what point should I start to insist he be a bit less incommunicado?

Also, at what point did your DP/DH reduce the nightly boozing to a level they'd be sober enough to drive you to hospital should the need arise?

I don't want to put a ball and chain around his ankle, which is why I've been fairly relaxed up until now.

it took the 'shock' of me going in for monitoring at 32 weeks with DS to bring DH round to the idea he needed to be in touch (bleeding but stopped quickly - no probs at all in the end)

We did have to come to an agreement that I would text him rather than calling as he agreed to pick the phone up every time I called even in meetings but I needed to let him know if it was 'serious' first and not just me wanting to know if he was picking dinner up on the way home!

We agreed a foreign travel ban at 36 weeks.

He's generally being very good (actually, marvellous), but I do tend to go into a bit of a panic if I ring and he doesn't call back for ages. Yesterday he called back me not long after I'd posted. Oh, and he doesn't drink MASSIVELY, couple of cans a night, maybe a bit much to drive tho. He's offered to stop completely once I start my maternity leave (at 33+3), but I feel now like maybe that's a bit early! There's no point two of us sitting there tee-total.

I did say to him today that any far-flung climbing trips should be gotten out of his system really in the next few weeks. He was happy with that.

Another vote for 37 weeks here.

Having said that DH went to a marathon job interview in Germany and Switzerland for one day, 2 weeks before my due date with DS1. Everybody else was a bit freaked by it and said he shouldn't go but it didn't bother me - I didn't think a first labour would be two weeks early or quicker than 6 hours. I was right (thank goodness).

DS was born on his due date.

i have the text rule too, i text anything i need so that he knows if I'm calling, its all systems go! except i dropped the next directory on my mobile and didnt realise til poor dh called the house phone freaking out that i had called him and was deathly silent! he ha