Oddly enough, both times it happened were right about the time my wife conceived. Coincidence? I'd say no. Women can really turn on the charm in the bedroom when they are looking to get preggers. She had her own motives beyond hot sex there for sure.
I don't think W has ever had a deep quake, or if she has she has never told me about it.
 Bet she would n't tell you if she did. You guys are too disconnected at this point. One step at a time. She may not even be in touch with those feelings within herself anymore. Too far into mommy mode. They may be in hybernation, hopefully not for 18 years
I hope that wasn't TMI I don't want ever want to hear you say those words again I'm all about the information. Keep it coming.
You should ask your H about it. I am going to in the next day or so and I'll report back.