For sure sounds like the start of the 4 month sleep regression. My little is 14 weeks as well and during the day he is waking himself every hourish when a week ago he would nap for 2 hours at a time during the day no problem. He was also sleeping one 8 hour and one 4 hour stretch at night. Last night he slept for 5 hours and 4 hours and we are back to 1 hour naps so far this morning. We've had some luck with a white noise machine but he is sleeping best while moving right now. Our solutions have been to pop him in the carrier while we are doing things around the house, go for a drive, or rock him in the rocking chair
Yup. My LO is the same age and just wants to be held but only upward. According to the app I use for Leaps this is normal and part of the beginning of leap 4 (which is also the 4 month sleep regression everyone talks about).