Should I continue being the one to initiate?

Hi! I (29M) have been seeing this girl (27) for about 4 months. We share a mutual group of friends so that is how we met. The past couple of weeks, I feel like her interest has changed. I've arranged the last 3 dates and it seems like lately I've been the one to call or text. Whenever I did ask to hang out, she was very engaged, always agreed to plans and never bailed. Also, over text, she asks questions, continues the conversation, etc. When I call her, she'll answer. If she misses my call, she'll call me back. Maybe there's nothing to be concerned about here but I'm a bit nervous with her all of a sudden not being the one to initiate. Any advice? Thank you.
Updates
+1 y
To add, we haven't had any talk yet about what we are looking for, what we "are", etc
Should I continue being the one to initiate?
Post Opinion