Could I be pregnant?

About 3-5 days leading up to the day my period was suppose to start I had heavy discharge creamy in appearance and that never happens maybe very light. Then my period usually comes on day 28 and it came on 31 which is late but not super late so I was like ok well I'm not pregnant even though I didn't have any symptoms that my period was coming even though I usually know about two days in advance. And I was having unusual symptoms like the heavy discharge. I have also been nauseous. Now I'm on day 3 of my period and each day I've only bleed enough to fill 1 tampon and usually my first two days I bleed heavy. So my question is do you think I could be pregnant and this is a light bleeding / spotting that some women experience during early pregnancy. And my last period was September 27th. And yes I know I could take a pregnancy test but I was pregnant in July and it took army period being a week late for my test to finally show positive and I lost the baby a week to a week and half later at 6 weeks and 4 days.