Put me in the camp of "if your not comfortable with the idea, don't do it." That's a red flag to me. Your a grown woman who can make your own decisions and don't need to be coaxed into trying something new. Let your husband do the dive and you can enjoy the pool or other land-based amenities that day. Or dive somewhere else while he does that dive.
Where has most of your diving been? If it's been cold, murky water you'll find clear, tropical water easier to dive in. As pointed out above, 100' at the Blue Hole in Belize isn't the same as 100' in Puget Sound during the spring plankton bloom. This is a double-edged sword though: When I drop 10' in Puget Sound, the change in light is perceptible even if I'm not paying attention to my gauge. I've found myself much deeper than I thought in tropical waters because the water is so clear you don't notice any change in light.
If you were to go from 52' to 100' outside of a class session, at least this is (hopefully) with a qualified Divemaster who should be keeping an eye on you. I wouldn't categorically rule it out for the right person, but what your describing isn't you.
On overheads: Yeah, you've not been trained for them. There are overheads and there are overheads. I'd ask "can I make a run to the surface without having to swim horizontally for much distance." If you're in a swim through you can keep going and angle up as you exit. If you're just under the lip of a wreck's decking, and you can do a backflip underwater proficiently (not everybody can), you've got an easy path to the surface. If you're 30' (10m) into a wreck, even one with multiple openings and light visible in all directions, well, that's sketchy to me.
But see the point above: If YOU aren't comfortable with the idea, don't try it.
Where has most of your diving been? If it's been cold, murky water you'll find clear, tropical water easier to dive in. As pointed out above, 100' at the Blue Hole in Belize isn't the same as 100' in Puget Sound during the spring plankton bloom. This is a double-edged sword though: When I drop 10' in Puget Sound, the change in light is perceptible even if I'm not paying attention to my gauge. I've found myself much deeper than I thought in tropical waters because the water is so clear you don't notice any change in light.
If you were to go from 52' to 100' outside of a class session, at least this is (hopefully) with a qualified Divemaster who should be keeping an eye on you. I wouldn't categorically rule it out for the right person, but what your describing isn't you.
On overheads: Yeah, you've not been trained for them. There are overheads and there are overheads. I'd ask "can I make a run to the surface without having to swim horizontally for much distance." If you're in a swim through you can keep going and angle up as you exit. If you're just under the lip of a wreck's decking, and you can do a backflip underwater proficiently (not everybody can), you've got an easy path to the surface. If you're 30' (10m) into a wreck, even one with multiple openings and light visible in all directions, well, that's sketchy to me.
But see the point above: If YOU aren't comfortable with the idea, don't try it.