When, as @AliAwan suggests, you use the Pegasus site, it returns results with four pricing options, from lowest price to highest:
- Basic : only hand bag
- Essentials : 20kg baggage
- Advantage : seat selection, inflight food & drink, 20kg baggage
- Extras : change and refund seat selection, inflight food and drink, 20kg baggage
This suggests that, no, the lowest price does not include checked baggage. Pegasus Hand Baggage, in the General Rules, is described as
baggage taken onto the plane by the passengers. One hand baggage
of 20 cm x 40 cm x 55 cm, with maximum weight of 8kg is allowed.