I miscarried about 5 months ago and we just started TTC again. I took a opk and I ovulated on day 17 of my cycle. I had 2 brands of kits. When I first tested with one it said yes (digital reader at 7am) I then tested again around 8pm using a different brand kit and it said no. I know ovulation is only hours but I'm worried I may have missed my window. We had sex the entire week leading up to Saturday (ovulation day) except Thursday and Friday, and had sex on ovulation day. I worried my chances of getting pregnant are low