Could I be pregnant?

I came of my pill in November 15 and it took till about January to get my periods back me and my partner have been together over 2years and were beyond happy :). Each month when ttc you obviously get symptoms which you don't know if are pms or pregnancy! I have a period every month but the distance between them chances I use apps to tell me when I'm due but there never spot on and can vary. But this month I feel so so emotional which isn't like me, also my boobs hurt (more than with expected period) my nipples are quite tender also. I'm so so shattered but for the past two nights I haven't been able to sleep what so ever! I've also unexpectedly spewed up a bit in my mouth a couple of times! I'm so hoping I am this cycle! But I got a couple of spots this morning which could indicate a period so I want to know what you guys think! I also don't want to test too early and be dissapointed. Thankyou xxx