Chances??

So I had positive opk’s on the 13th-15th. We used preseed for the first time on the 14th and that was my peak ovulation day. We also baby danced on the 13th twice without preseed. Do our chances seem pretty good? Have you had luck with preseed? When should I start testing? I had a one day period on the 4th of the month but my app says im due for my AF again on the 29th. Anybody know why that could be?