Name: Archie
Hi you both, Rachel and Mini,
Do not worry for some semen oozing. If you have orgasm while intercourse there will be more leakage no matter how long you lie down in bed after you are done.
As said by Smile, sperms will find their way to Fallopian tube and you only need one mature sperm to fertilize egg. Whatever amount of sperms may be lost in leaking semen or your cum (liquid you release from orgasm) will not matter so much.
Just try not to bed each a day. Bed around ovulation is the best. If you abstain from bed until this period your husband will have developed many more mature sperm. Frequent bed in average to low sperm count guys can limit number or sperms and of course many of them will be immature. Do not forget sperms contribute at least 50% work while you try to get pregnant.
Mini, ovulation prediction kits cost anywhere around $25. Oops I don't know if you are in USA. If you find one cheaper you can use but can't guarantee their precision. Usually OPK comes as 5-10 tests and sometime a free pregnancy test. Just I was in Pharmacy yesterday and came across beautiful package that is 5 OP tests and one free pregnancy test. Considering need $25 or $30 is not hugh expense.
Do not test in first 10 days of your cycle (for cycle 28-29 days). If you are having cycles of 30 days then start testing from CD 13, during day time say 2 pm. Never take Ovulation test from first morning Urine. The day you get positive test, from that time wait for 12-24 hours and then bed on that day and next day. These are the only two days you need to consider as your best fertile day.
Ever you need help write to me I will be more than glad to help.
Good luck while ttc.
Archie