Need advice please

So here's my weird situation.

Got off the pill in August and have been actively TTC since October. The first 3 months, my cycles were 33-34 days. Month 3 I ovulated cycle day 21.

I'm now on month 4 and cycle day 35. I don't have any symptoms, pregnancy or PMS. I used opk to check my ovulation date all month and I never got a spike, however I had egg white cervical mucus around cycle day 28.

Considering today is cd 35, and AF hasn't arrived, I'm wondering if there's a chance I'm pregnant (without symptoms) or my period was just realllyyyy off this cycle and it'll come during the week. I've only been feeling rlyyy bloated and constipated, but I have IBS so that could just be normal for me.

Have any of you been pregnant without symptoms?