what are my chances...

Hey ladies, so I'm TTC this month. I got AF on the 17th of this month and according to glow I started ovulating last week Friday and will be done on Thursday. Me and my boyfriend are currently long distance but see each other every weekend. We bd on Saturday. I just took a cheap ovulation test and it was positive. Just want to know are my chances still good even though we only had sex once? I also been taking Geritol vitamins once a day since the 17th. No serious symptoms that I have notice just a weird sore throat but that may be due to the weather change.