Okay I will start out with some background.

I had my son at the end of Feb and my period returned to normal about a 1 1/2 months later. I have had normal periods since. Right after my period in Oct I had sex once. Of course protected but the condom did come off during intercourse. 

My period in Nov started the 5th didn't have normal starting symptoms. I had mild cramping during the period. The period was light with no clots and lasted about seven days. Normally I have horrible cramps and heavy bleeding with clots but this time around I barely needed a pad. My period in Dec came on the 8th  and again it was like the one the previous light with no clots and lasted 7 days. I had more cramping and period like symptoms. Ever since my first odd period I have had heartburn, sore breasts off and on, moodiness, nausea and more recently bloating and pressure on my hip/pelvic bones during the night time. 

I keep going back and fourth on if I need to buy a test. So I wanted to know some other people opinions on my situation.