Well, I found out that I was pregnant one week ago...Unfortunately I am going through the process of miscarrying.
But, my first signs that I may be preg was a missed cyxle and one morning I woke up and swore someone came in at night and gave me a boob job, they were larger/heavier and very achey and sore. I was urinating a lot more frequently, my back started to hurt, and I was falling asleep on the couch around lunchtime.
So, it is possible that the signs you both describe could mean pregnancy, I would check with your ob if you feel anxious. Morning sickness didn't happen for me, my mom said she didn't get it until she was 3 months along for both my brother and me. I think sickness varies for many women, some don't even get morning sickness.