Depending on your DPO (days past ovulation) these could indeed be early symptoms of pregnancy.
While every woman has a different cycle, in general, we measure cycles from the first day that menstruation starts to the length of time it takes for the first day of the following menstruation to start as 28 days.
Ovulation typically happens halfway through that cycle, around day 14, and each day following that is considered "the two week wait" when pregnancy symptoms may start appearing before the missed period.
Most home pregnancy tests will give you an accurate result from the day that your period is due, but there's also a lot of brands that offer early-results before your period is due and you can start taking these about five days before your period is due, although they're more accurate with each day that you near your period due date.
If you continue to experience these symptoms I would definitely take a pregnancy test!