Confused😔

Ok first I'd like to thank you ladies for all of your support or advice. I've pretty much most always been a regular cycle. 28 or so. Well i started temping about 3 months ago and everything was ok. My first initial thought of this month cycle being irregular was the fact that Feb is a short month but idk lol. But i noticed that in going on cd 32 no signs of af I've had sore nips and breast and they felt heavy. I decided to take an opk to test for preganacy because I've read online about them detecting the level of hcg or lh .i had tested on a clear blue digital and got a smile face today which would be cd 32. Could I possibly be pregnant or still be fertile?