Can I Be Pregnant With PCOS Naturally?

Okay, so I've been diagnosed with pcos when I was 18, at the time I weighed 114 and was 5'5' and was very athletic and missed my periods for about 5 months, so my doc diagnosed me with it and I was on BirthControl for about seven months I stop taking them then I stopped getting my period for about 5 months then I bleed for 2 weeks then skipped a month bleed very heavy for a week then it skipped two months and started to light bleed for seven months straight and it was so light at times it was as if i was spotting and during that time I went to the hospital and the doc told me that my blood work came back fine I had no std and said I didn't fit the PCOS profile and by the way my weight is 145 and so on my last month which was March I moved out of state and I bleed very heavy that whole week and havent had my period since. I think that I may be pregnant bcuz at the end of april my breast was sore, I felt nausa when ever I laid down, I been eatin a lot, nose be stuffed all the time, I'm all ways sleepin late and i'm always fatigue, and this month i felt the cramps that you get wen u get ur period but it didn't come I use to have headache evry othter day and I'm starting to see that brown vertical line on my stomach but I took a HPT and it came out neg. can i still be pregnant